The perimeter of a square is 40cm, find its area.
- A100sq cm
- B25sq cm
- C50sq cm
- D160sq cm
Solution & Step-by-step Explanation
Let the side of the square be a.
Given, the perimeter of the square =40cm:
4a=40
a=10cm
The area of a square is given by a
2
:
Area=a
2
=10
2
=100sq cm
Given, the perimeter of the square =40cm:
4a=40
a=10cm
The area of a square is given by a
2
:
Area=a
2
=10
2
=100sq cm