## Samacheer Kalvi 3rd Standard Maths Book Solutions Term 3 Chapter 1 Geometry

Question 1.

Draw the diagonals for the given rectangle.

Answer:

Question 2.

How many diagonals will be there in a cuboid?

Answer:

16

Match the properties of 2D shapes by observing their sides and corners (vertices).

Question 1.

Opposite sides are equal.

Answer:

Question 2.

There are no sides and corners.

Answer:

Question 3.

Sides may or may not be equal.

Answer:

Question 4.

All the four sides are equal.

Answer:

Properties of 3D Objects:

Question 1.

Pick out the shapes with (i) curved surfaces (ii) flat surfaces (iii) curved and flat surfaces from the given picture and completed table.

Answer:

Question 2.

Complete the table by counting the sides, corners and diagonals of the given 3D shapes.

Answer:

Tangrams (Text Book Page No. 7):

Identify the tangram pieces used in the given images by colouring and numbering the pieces as in the reference figure.

Question 1.

A tangram house

Answer:

Question 2.

A tangram boat

Answer:

Question 3.

A tangram swan

Answer:

Tessellation (Text Book Page No. 8):

Question 1.

Complete the shapes by filling the tiles.

(i)

Answer:

(ii)

Answer:

Question 2.

Draw one more tile to continue the pattern.

i)

Answer:

ii)

Answer:

iii)

Answer: