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प्रश्न
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
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उत्तर
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
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