Polygons: Classification and KInds
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This document provides an overview of polygons, defining them as two-dimensional shapes with three or more straight sides that meet to form angles. It classifies polygons into types such as convex, concave, regular, and irregular, and lists various polygons by the number of sides, including triangles, quadrilaterals, pentagons, and others up to dodecagons. Additionally, it includes parts of polygons such as sides, vertices, angles, and diagonals.
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Polygons: Classification and KInds
- 1. Grade 7 – Mathematics Quarter III POLYGONS
- 2. POLYGONS Prepared by: Jo-Ann E. Rogon
- 3. Activity 1: “POST – IT!” Draw any shape or figure of your choice.
- 4. Column A Column B
- 5. What is a POLYGON? -from the Greek word POLY means many and GON which means angle. A polygon means “many angles”.
- 6. What is a POLYGON? - a 2-dimensional (flat) figure made up of three or more straight line segments.
- 7. What is a POLYGON? - a closed plane figure where two sides exactly meet at a vertex.
- 8. TYPES OF POLYGON CONVEX CONCAVE REGULAR IRREGULAR
- 9. CLASSIFICATIONS OF POLYGONS NO. OF SIDES NAME OF POLYGON 3 Triangle 4 Quadrilateral 5 Pentagon 6 Hexagon 7 Heptagon 8 Octagon NO. OF SIDES NAME OF POLYGON 9 Nonagon 10 Decagon 11 Undecagon 12 Dodecagon 13 Tridecagon n n-gon
- 11. PARTS OF A POLYGON side vertex angle diagonal 4 4 4 2
- 12. NAMING A POLYGON A B D C Sides: 𝑨𝑩, 𝑩𝑪, 𝑫𝑪, 𝑨𝑫 Vertices: A, B, C and D Angles: ∠𝐀, ∠𝐵, ∠𝑪, ∠𝑫 Diagonals: 𝑨𝑪 𝒂𝒏𝒅 𝑩𝑫 Name:Quadrilateral ABCD
- 13. Complete the table. Polygon Name Sides Angles Vertices Diagonals B A C A D B C A E B C D