A circular piece of glass has a radius of 0.8 meters. The glass sells for $4.60 per m2.
What is the total cost of the circular piece of glass?
Use 3.14 for pi.
A $2.01
B $9.24
C. $23.11
D $36.98
Help i need the answer

A=pi r^2

then use your rate of $4.60/m^2 and multiply that by your area.

A = 3.14 (.8^2)

Cost = 2.01 m^2 $4.60/m^2 = $9.24

So your answer would be B

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