Question

Circumference of circle With diameter :- a) 75cm and 8.7cm​

Answer 1

Answer :

(a) 235.71 cm

(b) 27.34 cm

Explanation step-by-step :

(a) D=75cm

so, radius = 75/2 = 37.5 cm

hence, circumference of circle = 2 =\< r

= (2 × 22/7 × 37.5)

= 235.71 cm

(b) D= 8.7 cm

so, radius = 8.7/2 = 4.35 cm

hence, circumference of circle

= 2 =\< r

= (2× 22/7 × 4.35)

= 27.34 cm

Hope you find this helpful:)