Find the area of the following circles, that : (a) 14cm (b) 28mm (c) 21cm
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Answered by
2
Answer:
88cm,176mm ,132cm
Step-by-step explanation:
(a) Radius(r) = 14cm
Circumference= 2\pi r=2\times\frac{22}{7}\times142πr=2×
7
22
×14
=88cm
(b) Radius(r) = 28mm
Circumference= 2\pi r=2\times\frac{22}{7}\times282πr=2×
7
22
×28
=176mm
(c) Radius(r)=21cm
Circumference= 2\pi r=2\times\frac{22}{7}\times212πr=2×
7
22
×21
=132cm
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