Question

Find the circumference of the given circle given a diameter of 40 cm.

Use 3.14 as an approximation of Pi.

Answer 1

c. 125.6

Explanation:

Pi= 3.14

r= d/2 = 40/2 = 20

`2\pi \: r`

= 2 × 3.14 × 20

=125.6