The document discusses fractions of revolutions and measuring angles. It explains that a full revolution is divided into 360 degrees. When the second hand of a clock moves from one hour to another, it turns through a fraction of a revolution or number of degrees. Examples show calculating fractions of revolutions and measuring angles in degrees using a protractor. Different types of angles such as acute, obtuse, right and reflex angles are also defined.
In geometry, there are various types of angles, based on measurement. The names of basic angles are Acute angle, Obtuse angle, Right angle, Straight angle, reflex angle and full rotation. An angle is geometrical shape formed by joining two rays at their end-points. An angle is usually measured in degrees.
There are various types of angles in geometry. Angles form the core part of the geometry in mathematics. They are the fundamentals that eventually lead to the formation of the more complex geometrical figures and shapes.
What are Angles
When two rays combine with a common endpoint and the angle is formed. The two components of an angle are “sides” and “vertex”.
Parts of Angle
Vertex – Point where the arms meet.
Arms – Two straight line segments form a vertex.
Angle – If a ray is rotated about its endpoint, the measure of its rotation is called angle between its initial and final position.
Classification of Angles
Angles can be classified into two main types:
Based on Magnitude
Based on Rotation
Six Types of Angles
In Maths, there are mainly 5 types of angles based on their direction. These five angle types are the most common ones used in geometry. These are:
Acute Angles
Obtuse Angles
Right Angles
Straight Angles
Reflex Angles
Full Rotation
In geometry, there are various types of angles, based on measurement. The names of basic angles are Acute angle, Obtuse angle, Right angle, Straight angle, reflex angle and full rotation. An angle is geometrical shape formed by joining two rays at their end-points. An angle is usually measured in degrees.
There are various types of angles in geometry. Angles form the core part of the geometry in mathematics. They are the fundamentals that eventually lead to the formation of the more complex geometrical figures and shapes.
What are Angles
When two rays combine with a common endpoint and the angle is formed. The two components of an angle are “sides” and “vertex”.
Parts of Angle
Vertex – Point where the arms meet.
Arms – Two straight line segments form a vertex.
Angle – If a ray is rotated about its endpoint, the measure of its rotation is called angle between its initial and final position.
Classification of Angles
Angles can be classified into two main types:
Based on Magnitude
Based on Rotation
Six Types of Angles
In Maths, there are mainly 5 types of angles based on their direction. These five angle types are the most common ones used in geometry. These are:
Acute Angles
Obtuse Angles
Right Angles
Straight Angles
Reflex Angles
Full Rotation
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Model Attribute Check Company Auto PropertyCeline George
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The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
2. Fraction of a revolution
When the second hand of a clock starts at 12 and moves
round until it stops at 12 again, it has gone through one
complete turn. One complete turn is called a revolution.
When the seconds hand starts at 12 and stops at 3, it has
turned through
1
4
of a revolution.
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3. Worked Example 10a
What fraction of a revolution does the seconds hand of a clock turn through when
It starts at 3 and stops at 12 It starts at 4 and stops at 8
If the seconds hand starts at 3 and stops at
12, it turns through
3
4
of a revolution.
If the seconds hand starts at 4 and stops at
8, it turns through
1
3
of a revolution.
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4. Questions
What fraction of a revolution does the second hand of a clock turn through when it (show by
drawing second hand in the circle)
a) Starts at 12 and stops at 6
Ans: Half (
1
2
) of a revolution
b) Start at 7 and stops at 10
Ans:
1
4
of a revolution
c) Start at 5 and stops at 2
Ans:
3
4
of a revolution
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5. Worked example
Where does the hand stop if it starts at 12 and turns through
1
4
of a revolution
Ans: It stops at 3
A revolution has 12 steps
1
4
of 12 is 3. 3 steps from 12 is 3.
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6. Questions
Where does the hand stop if
a) It starts at 12 and turns through
3
4
of a complete turn
Ans: It stops at 9
b) It starts at 9 and turns trough a
1
2
a complete turn
Ans: It stops at 3
c) It starts at 12 and turns through
2
3
of a revolution
Ans: It stops at 8
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7. Compass directions
The four main compass directions are North, South,
East and West.
Question
If you are facing West and turn through 1
2
3
revolutions, in Which direction are you facing?
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If you stand facing North, and turn clockwise through
1
2
a revolution, you are then facing South
8. Angles
• When the hand of a clock moves from one position to another it has turned trough an angle
• A quarter of a revolution is called a right angle
• Half of a revolution is two right angle
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Right angle Two right angles
9. Worked example
How many right angles does the second hand of a clock turn through when it starts at 3 and stops
at 12
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Ans: It turns trough three right
Questions
How many right angle does the seconds hand of a clock turn through when
a) Starts at 6 and stops at 9
b) Start at 8 and stops at 2
c) How many right angles do you turn trough if you face North and turn anticlockwise to face East?
10. Measuring angles
One complete revolution is divided into 360 parts. Each part is called a degree. 360 degrees is
3600
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Worked example
How many degrees has the seconds hand of a clock turned through
when it moves from 6 to 8?
When the hand moves from 6 to 8 it
turns through
2
12
revolution
Ans; The hand turns through
2
12
of 3600
which is 600
8
6
11. Using protractors to measure angles
A protractor looks like this
6/14/2018 zmaths4all
It has the following
- Base line
- Center
- scale
From the base line, you read
anticlockwise on the scale from
00
to 700
. The angle is 700
Measure this angle
13. Worked example
a) Find the size of the angle marked p
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Angle p and 400 together make 3600
So angle p is 3600- 400 = 3200 400
P
b) Measure the following angle
This is a reflex angle and it is bigger than 3
right angles, i.e it is greater than 2700
To find this angle, we need to measure the smaller
angle, marked p
Angle p is 550
, so the reflex angle is
3600
- 550
= 3050
P
14. Drawing angles using a protractor
To draw an angle of 1200, start by drawing one arm and mark
the corner of your angle.
The corner, or point, of an angle is called vertex.
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Place the protractor as shown in the diagram. Make sure that
the vertex is at the center of the base line.
Choose the scale that starts at 00
on the drawn line, and mark the
paper next to the 1200
mark on the scale.
Remove the protractor and join your mark to the vertex.
15. Types of Angles
Any angle that is smaller than a right angle is called acute angle
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Any angle that is greater than one right angle and less than two
right angles is called an obtuse angle
Any angle that is greater than two right angles is called a reflex
angle.
A right is 900
16. Related angles
Vertically opposite angles
When two straight lines cross, four angles are formed.
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The two angles that are opposite each other are called vertically opposite angles .
Vertically opposite angles are equal
P
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