Question

Whats the circumference of a circle with a radius of 21 meters

Answer 1

131.88 m^2

Explanation:

Circumference formula: 2pi × radius

2 × 3.14 = 6.28

6.28 × 21 = 131.88

Answer 2

C =131.88 meters

Explanation:

The circumference of a circle is given by

C = 2*pi*r

where r is the radius

C = 2 * pi * 21

C = 42 pi

If we approximate pi by 3.14

C = 42(3.14)

C =131.88 meters