the circumference of a circle is 31.4 cm .find its radius and find its area . take pie=3.14
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Answer:
Step-by-step explanation:
Circumference= 2 x 3.14 x r = 31.4 cm
=> r= 5 cm
Area= 3.14 x 5x5 =3.14 x 25
=> 78.5 cm^2
hanamehar5008:
how did you get radius 5cm. i don't understand it.
Divide 31.4 by 6.28
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