SlideShare a Scribd company logo
1 of 4
USING A 
PROTRACTOR 
By Maria Adrover 
Geometry 4th_Unit 2_Angles
MEASURING ANGLES 
Set the protractor so that: 
The vertex of the angle match the protractor centre. 
One angle arm should match the base line. 
Read the score, this is the angle measure.
TIP!! 
If the arms of the angles are too short... 
- Make them longer using a ruler and a pencil. 
- Now you can measure it!!
DRAWING ANGLES 
Draw a straight line (using a ruler) starting from an A point. 
Match the protractor centre with the A point 
Look for the measure (angle degrees) in the protractor score 
and mark it as point B. 
Draw a straight line matching the two points (A--B)

More Related Content

More from TRMaria

More from TRMaria (20)

Mat_3rd_UD4_3D Shapes
Mat_3rd_UD4_3D ShapesMat_3rd_UD4_3D Shapes
Mat_3rd_UD4_3D Shapes
 
Mat _6th_UD4_3D Shapes
Mat _6th_UD4_3D ShapesMat _6th_UD4_3D Shapes
Mat _6th_UD4_3D Shapes
 
Mat_5th_UD5_The plane figures' areas
Mat_5th_UD5_The plane figures' areasMat_5th_UD5_The plane figures' areas
Mat_5th_UD5_The plane figures' areas
 
Plat_3ri4rt_ud6_tony cragg_artwork
Plat_3ri4rt_ud6_tony cragg_artworkPlat_3ri4rt_ud6_tony cragg_artwork
Plat_3ri4rt_ud6_tony cragg_artwork
 
Plat_3ri4rt_ud6_tony cragg_presentation
Plat_3ri4rt_ud6_tony cragg_presentationPlat_3ri4rt_ud6_tony cragg_presentation
Plat_3ri4rt_ud6_tony cragg_presentation
 
Concurs logo. exemples
Concurs logo. exemplesConcurs logo. exemples
Concurs logo. exemples
 
Mat_4rt_UD4_Plane figures
Mat_4rt_UD4_Plane figuresMat_4rt_UD4_Plane figures
Mat_4rt_UD4_Plane figures
 
Mat 5th_UD4_3D shapes
Mat 5th_UD4_3D shapesMat 5th_UD4_3D shapes
Mat 5th_UD4_3D shapes
 
Mat_6th_ud3_the plane figures and their areas
Mat_6th_ud3_the plane figures and their areasMat_6th_ud3_the plane figures and their areas
Mat_6th_ud3_the plane figures and their areas
 
Plast_3ri4rt_UD5_Agatha Ruiz de la Prada
Plast_3ri4rt_UD5_Agatha Ruiz de la PradaPlast_3ri4rt_UD5_Agatha Ruiz de la Prada
Plast_3ri4rt_UD5_Agatha Ruiz de la Prada
 
Arts & Crafts_5th and 6th_Pablo picasso
Arts & Crafts_5th and 6th_Pablo picassoArts & Crafts_5th and 6th_Pablo picasso
Arts & Crafts_5th and 6th_Pablo picasso
 
Mat_5th_UD3_Angles
Mat_5th_UD3_AnglesMat_5th_UD3_Angles
Mat_5th_UD3_Angles
 
Mat_3r_UD3_Plane figures
Mat_3r_UD3_Plane figuresMat_3r_UD3_Plane figures
Mat_3r_UD3_Plane figures
 
Mat_4th_UD3_Lines and angles
Mat_4th_UD3_Lines and anglesMat_4th_UD3_Lines and angles
Mat_4th_UD3_Lines and angles
 
Mat_4th_UD2_Geometric shapes
Mat_4th_UD2_Geometric shapesMat_4th_UD2_Geometric shapes
Mat_4th_UD2_Geometric shapes
 
Mat 4th ud2_capacity_presentation
Mat 4th ud2_capacity_presentationMat 4th ud2_capacity_presentation
Mat 4th ud2_capacity_presentation
 
Mat_5th_ ud2_operation with fractions
Mat_5th_ ud2_operation with fractionsMat_5th_ ud2_operation with fractions
Mat_5th_ ud2_operation with fractions
 
Mat_5th_UD1_Fractions_Presentation
Mat_5th_UD1_Fractions_PresentationMat_5th_UD1_Fractions_Presentation
Mat_5th_UD1_Fractions_Presentation
 
Plast_3rd.4th_Unit 1_Autumn_Autumn pastel picture. Step by step.
Plast_3rd.4th_Unit 1_Autumn_Autumn pastel picture. Step by step.Plast_3rd.4th_Unit 1_Autumn_Autumn pastel picture. Step by step.
Plast_3rd.4th_Unit 1_Autumn_Autumn pastel picture. Step by step.
 
Mat_4th_ud1_lenght
Mat_4th_ud1_lenghtMat_4th_ud1_lenght
Mat_4th_ud1_lenght
 

Recently uploaded

Recently uploaded (20)

COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptxCOMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
COMMUNICATING NEGATIVE NEWS - APPROACHES .pptx
 
How to Manage Global Discount in Odoo 17 POS
How to Manage Global Discount in Odoo 17 POSHow to Manage Global Discount in Odoo 17 POS
How to Manage Global Discount in Odoo 17 POS
 
Kodo Millet PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...
Kodo Millet  PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...Kodo Millet  PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...
Kodo Millet PPT made by Ghanshyam bairwa college of Agriculture kumher bhara...
 
HMCS Max Bernays Pre-Deployment Brief (May 2024).pptx
HMCS Max Bernays Pre-Deployment Brief (May 2024).pptxHMCS Max Bernays Pre-Deployment Brief (May 2024).pptx
HMCS Max Bernays Pre-Deployment Brief (May 2024).pptx
 
Food safety_Challenges food safety laboratories_.pdf
Food safety_Challenges food safety laboratories_.pdfFood safety_Challenges food safety laboratories_.pdf
Food safety_Challenges food safety laboratories_.pdf
 
UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf
UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdfUGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf
UGC NET Paper 1 Mathematical Reasoning & Aptitude.pdf
 
How to Create and Manage Wizard in Odoo 17
How to Create and Manage Wizard in Odoo 17How to Create and Manage Wizard in Odoo 17
How to Create and Manage Wizard in Odoo 17
 
Plant propagation: Sexual and Asexual propapagation.pptx
Plant propagation: Sexual and Asexual propapagation.pptxPlant propagation: Sexual and Asexual propapagation.pptx
Plant propagation: Sexual and Asexual propapagation.pptx
 
On National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan FellowsOn National Teacher Day, meet the 2024-25 Kenan Fellows
On National Teacher Day, meet the 2024-25 Kenan Fellows
 
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptxBasic Civil Engineering first year Notes- Chapter 4 Building.pptx
Basic Civil Engineering first year Notes- Chapter 4 Building.pptx
 
NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...
NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...
NO1 Top Black Magic Specialist In Lahore Black magic In Pakistan Kala Ilam Ex...
 
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
Beyond_Borders_Understanding_Anime_and_Manga_Fandom_A_Comprehensive_Audience_...
 
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
2024-NATIONAL-LEARNING-CAMP-AND-OTHER.pptx
 
Mehran University Newsletter Vol-X, Issue-I, 2024
Mehran University Newsletter Vol-X, Issue-I, 2024Mehran University Newsletter Vol-X, Issue-I, 2024
Mehran University Newsletter Vol-X, Issue-I, 2024
 
REMIFENTANIL: An Ultra short acting opioid.pptx
REMIFENTANIL: An Ultra short acting opioid.pptxREMIFENTANIL: An Ultra short acting opioid.pptx
REMIFENTANIL: An Ultra short acting opioid.pptx
 
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptxHMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
HMCS Vancouver Pre-Deployment Brief - May 2024 (Web Version).pptx
 
Unit 3 Emotional Intelligence and Spiritual Intelligence.pdf
Unit 3 Emotional Intelligence and Spiritual Intelligence.pdfUnit 3 Emotional Intelligence and Spiritual Intelligence.pdf
Unit 3 Emotional Intelligence and Spiritual Intelligence.pdf
 
Sociology 101 Demonstration of Learning Exhibit
Sociology 101 Demonstration of Learning ExhibitSociology 101 Demonstration of Learning Exhibit
Sociology 101 Demonstration of Learning Exhibit
 
How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17How to Give a Domain for a Field in Odoo 17
How to Give a Domain for a Field in Odoo 17
 
FSB Advising Checklist - Orientation 2024
FSB Advising Checklist - Orientation 2024FSB Advising Checklist - Orientation 2024
FSB Advising Checklist - Orientation 2024
 

4th geometry unit 2_using a protractor

  • 1. USING A PROTRACTOR By Maria Adrover Geometry 4th_Unit 2_Angles
  • 2. MEASURING ANGLES Set the protractor so that: The vertex of the angle match the protractor centre. One angle arm should match the base line. Read the score, this is the angle measure.
  • 3. TIP!! If the arms of the angles are too short... - Make them longer using a ruler and a pencil. - Now you can measure it!!
  • 4. DRAWING ANGLES Draw a straight line (using a ruler) starting from an A point. Match the protractor centre with the A point Look for the measure (angle degrees) in the protractor score and mark it as point B. Draw a straight line matching the two points (A--B)