A local carpet company has been hired to carpet a planetarium which is in the shape of a circle. If the radius of the planetariu
m is nine yards, and the cost of the carpet is $15 per square yard, find the total cost to carpet the planetarium.
1 answer:
Pie r squared is the area of a circle, so 9^2(3.14etc) = so 255 square yards. So 255 x 15 = $3,825
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