Asked by Elaine
The famous rotunda of the Capital Bldg has a floor that is 96 feet in diameter. A marble restoration company charges $40 per sq. yard for its services. How much would it cost to restore the entire floor in the rotunda?
My answer 96 feet in diameter C=πd
96+3.14π=105.9
My answer 96 feet in diameter C=πd
96+3.14π=105.9
Answers
Answered by
Reiny
No
They are chargint $40 per <b<square</b> yard, so we are dealing with area, not circumference
Area = πr^2
= π(48)^2
= 2304π feet ^2
= 256π yards^2
cost = $40(256π)
= $32,169.91
or appr $32,170
Your answer of only $105.90 should have sounded totally unreasonable to you .
They are chargint $40 per <b<square</b> yard, so we are dealing with area, not circumference
Area = πr^2
= π(48)^2
= 2304π feet ^2
= 256π yards^2
cost = $40(256π)
= $32,169.91
or appr $32,170
Your answer of only $105.90 should have sounded totally unreasonable to you .
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