Question

Diameter of a circle is 28 cm, then area of the circle is?​

Answer 1

Answer:

area of the circle 22/7r^2

r=d/2

use this formula

Answer 2

$d = 28cm \\ r = \frac{d}{2} = \frac{28}{2} = 14cm \\ area = \pi r {}^{2} \\ = \frac{22}{7} \times 14 \times 14 \\ = 22 \times 2 \times 14 \\ = 616cm {}^{2}$

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