What is the circumference of a circle with diameter 33 Use

What is the circumference of a circle with diameter 33 ? Use 3.14 for pi. Round your answer to the nearest tenth.

Solution

The circumference of a circle with radius r = 2 * pi * r

We are given with diameter = 33 units

In a circle , radius = half of diameter , r = d/2 = 33/2

so circumference C = 2 * pi * (33/2)

= 2 * 3.14 * 16.5

= 103.6 units is the circumference of a circle .