Question

The perimeter of a square is 168 cm. Find the length of each side of the square and also its area.

A) Side length: 42 cm, Area: 1764 cm²
B) Side length: 36 cm, Area: 1296 cm²
C) Side length: 28 cm, Area: 784 cm²
D) Side length: 48 cm, Area: 2304 cm²

Answer 1

A) Side length: 42 cm, Area: 1764 cm²

Explanation:

Formula to calculate the perimeter

• P = 4 × side

First let's find the Length of the side of the square.

• 4 × side = 168

divide both sides by 4,

• side = 42

so, the Length of the each side is 42 cm

Now, Area = side × side

• Area = 42 × 42
• Area = 1764 cm²

Hence the area of the square is 1764 cm²