Question

the circumference of a circle is 3.14 m, find its area
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Answer 1

Answer:::

Using the formulas

A=πr2

C=2πr

Solving forA

A=C2

4π=3.142

4·π≈0.7846m²

Answer 2

Given circumference =3.14m

we know that circumference of circle =2πr

3.14 = 2×3.14×r

r=3.14 / (2×3.14)

r=0.5

we know that area of circle = π²

A=(22 /22×(0.5)²

A=0.785m²