Question

find the area of a circle that has a diameter of 11inches approximate as 13.4 round your answer to the hundreth

Answer 1

To find the area of a circle you do pi (3.14) multiplied by the radius squared.

The radius is half of the diameter: 11 / 2 = 5.5in

The radius squared is 5.5^2 = 30.25

Then take the squared radius and multiply that by pi 30.25 * 3.14 = 94.985

So the area of the circle is about 94. 99 in.

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Answer 2

radius = 1/2 diameter = 1/2 * 11 = 5.5 ins

area = pi * r^2 = 3.14 * 5.5^2 = 94.99 in^2 to nearest hundredth