Question

The diameter of a circle is 10 in. Find the circumference to the nearest tenth?

Answer 1

The circumference can be calculated using the formula

C = 2πr

where r is the radius

From the question, diameter =10, this implies radius = 5

π is a constant which is equal to 22/7

substitute the values into the formula and evaluate

`C=2*(22)/(7)*5`

`C\approx31.4\text{ cm}`