Question

2. The area of a circle is 98.56 cm. Find its circumference.
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Answer 1

answer :

35.2

Step-by-step explanation:

$\pi \: \times r {}^{2} = 98.56$

$r {}^{2} = 98.56 \div \pi$

$r = \sqrt{31.36}$

r = 5.6

circumference =

$2 \times \pi \times r$

=

$2 \times \pi \times 5.6 = 35.2$

Answer 2

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