Question

what is perimeter ? give 2 examples

Answer 1

Answer:

the path or the boundary that surrounds a . It can also be defined as the length of the outline of a shape.

Example 1. The two sides of the rectangle are given. What will be the perimeter of the rectangle?

Find the Perimeter of a rectangle

Solution: One side of the rectangle is 2 cm and the other side is 5 cm.

We know that, the perimeter of a rectangle = 2 × (sum of adjacent sides)

Therefore, the perimeter of the rectangle = 2 × (5 + 2) = 2 × (7) = 14 cm

Example 2. A rectangular playground is 20 m long and 13 m wide. Find its perimeter.

Find the Perimeter of a rectangle

Solution: One side of the rectangular playground is 20 m and the other side is 13 m.

We know that, the perimeter of a rectangle = 2 × (sum of adjacent sides)

Therefore, the perimeter of the rectangular ground = 2 × (20 + 13) = 2 × (33) = 66 m