A circular garden having a radius of 28 cm. If 80% of it is cultivated, what is the area of garden remaining uncultivated?

Question

Accepted Answer

1. Area of circle = $\pi r^2 = \pi(28)^2 = 784\pi$ cm$^2$.

2. Uncultivated part = $20\%$ of area = $0.2	imes 784\pi = 156.8\pi$ cm$^2$.

3. Approximate value: $156.8\pi \approx 156.8	imes 3.1416 \approx 492.8$ cm$^2$.

4. So the correct choice is (c).

FINAL_ANSWER: c

Answer

Answer

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