Question

find the area of a circle of radius 7.7cm

Answer 1

π . r square =3.14*7.7 square =186.3 square cm

Answer 2

Hey !!! ^_^

Here is your answer

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Radius of circle is given as 7.7 cm

then it's area be
${\pi}r^{2} \\ let \: the \: value \: of \: \pi \: be \: \frac{22}{7} \\ \\ = \frac{22}{7} \times 7.7 \times 7.7 \\ \\ = 22 \times 1.1 \times 7.7 \\ \\ = 22 \times 8.47 \\ \\ = 186.34 \: {cm}^{2}$


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