Question

(c) Taking
$\pi = 22 \div 7$
find the perimeter of the circle
7 cm
14 cm
28 cm​

Answer 1

Answer:

Solution 1:

(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

hope this is helpful for you