Answers:
- Circle area = 206.02 square feet
- Unshaded area = 132.25 square feet
- Shaded area = 73.77 square feet
The "square feet" portions are already handled by your teacher, so you'll just type in the numbers only.
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Step-by-step explanation:
The formula for the area of a circle is
A = pi*r^2
We replace pi with its approximation 3.14, and plug in the radius r = 8.1 to get the following approximate area:
A = 3.14*(8.1)^2
A = 206.0154
A = 206.02 which is the answer to the first box
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The unshaded region is a square of side length 11.5 ft
Its area must be (11.5)^2 = 132.25 square feet
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Subtract the results of the previous boxes to get the shaded area.
206.02 - 132.25 = 73.77