Question

Evaluate the
radius of a circular field whose area is 7/π cm
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Answer 1

Step-by-step explanation:

Area of circular field = $\frac {7} {\pi}$

$\therefore \pi \: r^2 = \frac {7} {\pi}\\</p><p>\therefore r^2 = \frac {7} {\pi\times \pi}\\ </p><p>\therefore r^2 = \frac {7} {\pi^2}\\ </p><p>\therefore r = \frac {\sqrt 7} {\pi}\\ </p><p>\therefore r = \frac {2.6457} {\frac{22}{7} }\\</p><p>\therefore r = \frac {2.6457\times 7} {22}\\ </p><p>\therefore r = \frac {18.5199} {22}\\</p><p>\therefore r = 0.84 \: cm$