A rubber ice-hockey puck has a 3.1 in. diameter. What is the surface area of one flat side of the puck?
a. 7.54385 in.2
b. 9.734 in.2
c. 3.77193 in.2
d. 30.1754 in.2
Area=pi(r2)
radius=3.1/2=1.55 in
Area=3.14(1.55)2
Area=7.54385 in2
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C. - 
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