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Programed instructional material: Angles

This document serves as an instructional guide on angles, detailing definitions, types, and properties of angles such as acute, right, obtuse, straight, reflex, complementary, supplementary, and complete angles. It includes a series of questions designed to reinforce understanding of the material presented. The content is structured into modules with instructional objectives aimed at helping learners identify and draw different angles.

Education◦
Topic: class: Let’s start module 1 Angles 7 TH Programmed Instructional material
Objectives At the end of this module you will be able to- To know about definition of angles. To know about there types. To draw and identify different angles. Let’s start module 2
Angles • A figure formed by two rays with a common initial point is called an angle. • It is denoted by ‘>’. • In a figure, an angle is formed by rays BA & BC. BA and BC are the arms of the angles and the common initial point B is called the vertex. Lets answer some questions answer 3
Lets answer some questions answer 4 Types of angles • Definition • When two arms of an angle overlap each other , the angle formed between is zero angle. • An angle which measures between 0◦ and 90◦ is called acute angle • An angle which measure 90◦ is called a right angle. • An angle which measure more than 90◦ but less than 180◦ is called a obtuse angle. • An angle which measure 180◦ is called a straight angle. • An angle which measure more than 180◦ but less than 360◦ is called a reflex angle. • When the sum of two angle are 90◦ is known as complementary angle. • When the sum of two angles are 180◦ is known as supplementary angle. • An angles which measure is 360◦ is known as complete angle.
Q1: An angle is formed by joining______ rays. -2 -4 -3 -5 5
Oops! Wrong Answer Click Here to attempt the question again Hint! 6
Oops ! Wrong Answer Click Here to attempt the question again Hint! 7
A) Congratulations you have selected Right Answer! Click Here to attempt the next question … 8
Q 2:common initial point of an angle is known as ________ -Bisector . -Vertex. -Diagonal. -Arms. 9
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B) Congratulations you have selected Right Answer! Click Here to attempt the next question … 12
Q3: The zero angle is the angle in which both the arms __________ - Does not overlaps. -Coincides. -Never overlaps. -overlaps. 13
Oops! Wrong Answer Click Here to attempt the question again Hint! 14
Oops! Wrong Answer Click Here to attempt the question again Hint! 15
D) Congratulations you have selected Right Answer! Click Here to attempt the next question … 16
Q 4:The angles which measure between 0° to 90° is termed as_________ angle. -Acute. -Right. -Obtuse. -Reflex. 17
Oops! Wrong Answer Click Here to attempt the question again Hint! 18
Oops! Wrong Answer Click Here to attempt the question again Hint! 19
A) Congratulations you have selected Right Answer! Click Here to attempt the next question … 20
Q5:Which angle is formed if its measures 90° ? -Zero. -Acute -Obtuse. - Right. 21
Oops! Wrong Answer Click Here to attempt the question again Hint! 22
Oops! Wrong Answer Click Here to attempt the question again Hint! 23
D) Congratulations you have selected Right Answer! Click Here to attempt next question … 24
Q6:The angle which measures between 90° to 180° is termed as _________ angle. -Right. -Acute. -Obtuse. -Straight. 25
Oops! Wrong Answer Click Here to attempt the question again Hint! 26
Oops! Wrong Answer Click Here to attempt the question again Hint! 27
C)Congratulations you have selected Right Answer! Click Here to go the next question … 28
Q7: _______ angle measures 180°. -Zero. -Straight -Obtuse. -Acute. 29
Oops! Wrong Answer Click Here to attempt the question again Hint! 30
Oops! Wrong Answer Click Here to attempt the question again Hint! 31
B)Congratulations you have selected Right Answer! Click Here to attempt next question… 32
Q8:An angle which measure more than 180° but less than 360°is called _______ angle. -Right. -Acute. -Complete. - Reflex. 33
Oops! Wrong Answer Click Here to attempt the question again Hint! 34
Oops! Wrong Answer Click Here to attempt the question again Hint! 35
D) Congratulations you have selected Right Answer! Click Here to go the next slide…. 36
Congratulations you have Scored 80 marks! 37