Question

If the area of a square is 256 m² , find the perimeter of this square. 
1. 16 m
2. 12 m
3. 64 m
4. 32 m

Answer 1

Correct Answer - Option 3 : 64 m

Given:

Area of square = 256 m²

Formula used:

Area of square = a²

Perimeter of square = 4a

Where, a → side of the square

Calculation:

Area of square = a2

⇒ 256 = a²

⇒ a = √256

⇒ a = 16 m

Perimeter of square = 4a

⇒ Perimeter of square = 4 × 16

⇒ Perimeter of square = 64 m

∴ Perimeter of a square is 64 m