SOLUTION: A circular piece of metal has a radius of 3.5 meters. The metal sells for $3.25 per square meter. What is the total cost of the circular piece of metal?

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Question 1004651:


A circular piece of metal has a radius of 3.5 meters.
The metal sells for $3.25 per square meter.
What is the total cost of the circular piece of metal?





A.
$11.38



B.
$38.47



C.
$71.44



D.
$125.01




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Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Area = (pi)r^2 = (3.14)(3.5)^2 = 38.465 m^2
Multiply that by $3.25 per m^2 and get
$125.01
Choice D.