Question

25.Circumference of a circle of diameter 5 cm is
(a) 14 cm
(b) 31.4 cm
(c) 15.7 cm
(d) 1.57 cm​

Answer 1

Answer:

solve this question by formula

$2\pi \: r$

Answer 2

Answer:

(c) 15.7

Step-by-step explanation:

Circumference of a circle = 2πr

Radius = diameter/2

           = 5/2 = 2.5 cm

Circumference = 2 x 22/7 x 2.5

                         = 5 x 22/7

                         ≈ 15.7