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E:\Working\Brother_Education\Preparatory_Stage_Maths-4_(31-10-2023)\Open_Files\Chap-08
\\January 6, 2024 4:08 PM Bharat Arora P-2 Reader _________________________ Date: ___________________

Here are some polygons given below.
Triangle Quadrilateral Pentagon

A A E
B
A D

B C D C B Pentagon C
Triangle Quadrilateral
A triangle is a 3-sided polygon. A quadrilateral is a 4-sided A pentagon is a 5-sided polygon.
In triangle ABC, 3 sides are: polygon. In quadrilateral ABCD, In pentagon ABCDE, 5 sides
AB, BC, CA 4 sides are: AB, BC, CD, DA are: AB, BC, CD, DE, EA

activity

Take a 7-piece tangram and make different types of polygons using 3 4
its pieces. For example, a hexagon (6-sided polygon) is shown here. 6
7 5 2
2 6 5
3 1
1 4 7

Practice Time 8C

1. Draw an open and a closed figure in your notebook.
2. Identify simple closed figures.

(a) (b) (c) (d)

(e) (f) (g) (h)

3. Identify the polygons in the following figures.

(a) (b) (c) (d)

(e) (f) (g) (h)

4. Name the sides of the following polygons.

(a) A B (b) X (c) M N (d) A

B E
Y
D C Z O
P C D

Teacher’s Explain to students that a 4-sided polygon is called a quadrilateral. So, a rectangle and a square are
Tip quadrilaterals because they also have 4 sides.

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