Question

Find the circumference of the circle whose diameter is : (a) 28 cm (b) 40cm (c)35 cm .(solve with explanation)

Answer 1

Answer : -

(a)

Circumference of the circle = 2πr

r = d/2

= 28/2

= 14

=> 2 × 22/7 × 14 (π = 22/7)

=> 75Cm

(b) r = 20

= 2 × 22/7 × 20

=> 125.5Cm

(C) r = 17.5Cm

= 2 × 22/7 × 17.5

=> 110Cm

Hope this helps you mate ❤❤

Answer 2

Answer:a.88,b.880/7,c.110

Step-by-step explanation:

First find radius by dividing the diameter by 2. Then apply 2piR formula.R=radius,pi=22/7or 3.14.

The answer will be the perimeter.