Question

Find S when r = 7 and S = 4πr2

Answer 1

616

Step-by-step explanation:

when r=7

S=4×22÷7×7^2 bcoz pie =22÷7

S= 4×22×7

S=616

Answer 2

Question :

Find S when r = 7 and S = 4πr^2

Answer :

$s = 4 \pi {r}^{2}$

$s = 4 \times \frac{22}{7} \times (7 \times 7)$

( since , π = 22 / 7)

$s = 4 \times 22 \times 7$

$s = 616$

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