Question

Find the area of the following circles, that : (a) 14cm (b) 28mm (c) 21cm​

Answer 1

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