Question

find the cost of erecting a fence around a square field whose area is 9 hectares,if fencing costs ₹ 35 per metre.
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Answer 1

✬ Total Cost = Rs 42000 ✬

Step-by-step explanation:

Given:

• Area of square field is 9 hectares.
• Cost of fencing is Rs 35 /m

To Find:

• What is the cost of fencing the square field?

Solution: We know that 1 hectare = 10000 m

∴ 9 hectares = (9 x 10000)m² = 90000 m²

• Length of each size of the square field = √90000 m

$\small\implies{\sf }$ √90000 m = 300 m

★ Perimeter of square field = 4 x Side ★

$\small\implies{\sf }$ Perimeter = 4 x 300

$\small\implies{\sf }$ Perimeter = 1200 m

→ Cost of fencing 1 m = Rs 35

∴ Cost of fencing 1200 m = 12000 x 35 = Rs 42000.

Answer 2

Answer:

See the gien attachment for the answer....