Question

The circumference of a circular flower bed is 132m. Find its area​

Answer 1

Answer:

$circumfrence = 2\pi \: r \\ 132 = \frac{44}{7} \times r \\ r = \frac{132 \times 7}{44} \\ r = 21 \: m$

$area = \pi {r}^{2} \\ \: \: \: \: = \frac{22}{7} \times {3}^{2} \\ \: \: \: \: = \frac{198}{7} \\ \: \: \: \: = 28.29 {m}^{2}$

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