Question

Find the area of a circle with diameter 5mm. Use the value 3.14 for pi, and do not round your answer. Be sure to include the correct unit in your answer.

Answer 1

19.6375 mm^2

Explanation:

Given data

Diameter = 5mm

Radius= 5/2= 2.5mm

The expression for the area

A=πr^2

Substitute

A=3.142*2.5^2

A=3.142*6.25

A=19.6375 mm^2