Question

Your garden is in the shape of a square of side 5 m. Each side is to be fenced with 2 rows of wire. Find how much amount is needed to fence the garden at ₹ 10 per metre

Answer 1

Perimeter of a square = (4 × side) units

Side = 5 m

∴ Perimeter = (4 × 5) m

= 20 m

Each side is fenced with 2 rows of wire

∴ Distance to be fenced = 2 × 20 m

= 40 m

Cost of fencing per metre = ₹ 10

∴ Cost of fencing 40 m = 40 × 10

= ₹ 400

Cost of fencing the garden = ₹ 400