This will help you in describing a polygon or not. You will also learn how to name and classify polygons according to the number of sides. For more instructional resources, CLICK me here! 👇👇👇 https://tinyurl.com/y9muob6q LIKE and FOLLOW me here! 👍👍👍 https://tinyurl.com/ycjp8r7u https://tinyurl.com/ybo27k2u

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

10. CLASSIFICATIONS OF POLYGONS

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