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A construction company charges $50, per square feet for building floors. How much will it cost to build a floor with radius 10 ft. use the dollars sign in your answer. Use π = 3.14

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3 votes

Answer:

69

Step-by-step explanation:for the boys

User Redhead
by
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3 votes

Answer:

$15700

Explanation:

To find the cost, you multiply $50 by the area of the floor. The floor must be a circle ("radius"), so to find the area of a circle, use the formula
A=\pi r^2 \\ A=\pi(10)^2 \\ A=(3.14)(100)=314\text{ square feet}

Multiply 314 sq. ft. by the cost per sq. ft.

314 x 50 = 15700

User Fjardon
by
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