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Answer:</h3>
414.48 square feet is needed to make 3 dozen of the covers.
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Step-by-step explanation:</h3><h3>Step 1: Find the circumference, perimeter, of the circle.</h3>
To find the circumference, you multiply the 4 by π, and π is 3.14, and you get 12.56.
<h3>Step 2: Find the area of the side, not including the circle.</h3>
The 12.56 is literally the length of the side. The width is the height of the cover which is 10 inches. 12.56 multiplied by 10 is 125.6 square inches.
Step 3: Add them up.
125.6 + 12.56 is 138.16
<h3>Step 4: Multiply 138.16 by three dozen (36 [a dozen is 12]).</h3>
138.16 multiplied by 36 is 4973.76 square inches.
<h3>Step 5: Convert 4973.76 square <u>inches</u> to square <u>feet</u>.</h3>
12 inches is 1 foot so we divide 4973.76 by 12. You get 414.48 square feet.