Question

taking 22/7 = 3.14, find the perimeter and area of a circle whose radius is :- (i) 8cm , (ii) 15cm , (iii) 20cm.​

Answer 1

Step-by-step explanation:

Perimeter = 2πr

Area = ( π r )×( π r )

π×2= 6.28

Perimeter Area

[8×3.14×2 8×3.14

=50.24(i) =25.12×25.12

=63,101.44(i)

6.28×15 15×3.14

=94.2(ii) =47.1×47.1

=2,218.41(ii)

6.28×20 20×3.14

=125.6(iii)] =62.8×62.8

=3,943.84(iii)

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