Question

The circumference of a circle is 3.14cm, Find its area
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Answer 1

Answer:

circumference=

$2\pi \: r$

$3.14 = 2 \times 3.14 \times r$

$1 = 2r$

$r = 1 \div 2$

area of circle

$\pi {r}^{2}$

put r

$1 \div 2$

$3.14 \times 1 \div 4$

$78.5$

Step-by-step explanation:

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Answer 2

solution: circumference of a circle = 2πr

3.14=2x3.14xr

3.14/3.14=2r

1=2r

r=1/2

Area of a circle =πr2

=3.14x1/4

=78.5