Page 121 - Revised Maths Wisdom Class - 3

Geometry 119

Exercise 8F

1 Is the dott ed line a line of symmetry for the following fi gures? Write Yes or No.

(a) (b) (c)

© G. Ram Books (P.) Ltd.©
2 Draw a line of symmetry for each fi gure. (The line of symmetry will divide the

given fi gures in two equal halves).

(a) (b) (c)

Tangrams

A tangram is an old Chinese puzzle.
From the pieces of the tangram, we can make many shapes of objects, animals, plants

and people.
There are two types of tangram.

The 5-piece tangram 2 3

It consists of 5 pieces: 3 triangles and 2 quadrilaterals. We can create 1
diff erent interesting fi gures using these fi ve pieces. Some of the 4
fi gures are illustrated below. 5

Remember!emember!emember!
R
 Each shape of tangram

Mountains Duck is called a ‘tan’

The 7-piece tangram
It consists of 7 pieces (fl at shapes): 5 triangles and 2 quadrilaterals.

We can create diff erent interesting fi gures using these seven
pieces. Some of the fi gures are illustrated below.