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# A cylindrical hockey puck is 1 inch thick and has a diameter of 3 inches. What is volume of the puck?

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A cylindrical hockey puck is 1 inch thick and has a diameter of 3 inches. What is volume of the puck?

a 3pi in^3

b 6.75pi in^3

c 9.5pi in^3

d 12pi in^3

I don't know if i'm doing something wrong, but got 5 for this, but it's not one of my answer choices

Rebirth  Mar 31, 2017
#1
+89775
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The volume of the puck  =

pi * (diameter / 2)^2 * thickness of puck

So...we have

pi * ( 3 / 2)^2  * 1  =

pi * ( 9 /4) * 1  =

(9/4) pi   =

2.25pi  in^3

[ None of the choices are correct...]

CPhill  Mar 31, 2017
#2
+37
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Unbelivable, none of the answer choices are right, idk if this somesort of mistake. Plus im about to take my end of course test pretty soon.

Rebirth  Mar 31, 2017
#3
+37
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And what formula did you used, I used the cylinder formula

Rebirth  Mar 31, 2017
#4
+89775
+2

The volume of a cylinder is given by :

pi * ( radius)^2 * height  =  pi * (diameter / 2) ^2 * height

Note....the thickness of the puck  = height of a cylinder....

CPhill  Mar 31, 2017