Question

Find the area of a circle with radius r of 2.5 inches. Round your answer off to one decimal point.

Answer 1

For this case, we have that by definition, the area of a circle is given by:

$A = \pi * r ^ 2$

Where:

A: It is the circle radius

In this case, $r = 2.5$ inches

So:

$A = \pi * (2.5) ^ 2\\A = \pi * 6.25\\A = 19.6350$

So, the area of the circle is:

19.6 square inches

Answer:

$19.6 \ in ^ 2$

Answer 2

Area of circle= pi (3.14) times by radius (half of diameter) squared So: 19.6 cm squared