Question

19. The perimeter of a square is 40 em. Find its area
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Answer 1

Required answer:

Area=100cm²

Given:

Perimeter of a square= 40cm

To find:

Area of the square.

Solution:

We know that perimeter of a square = 4×side

→ 40= 4×side

→ Side= 40÷4

→ Side= 10cm

Hence, side of the square = 10cm

Then,

Area of the square = (Side)²

= 10²

= 100 cm²

Hence, area of the square = 100cm²