Find the volume of the figure below.

Question

anonymous · Answer

attachment

anonymous · Answer

v= pi * r^2 *h ?

directrix · Answer

That formula is for the volume of a cylinder. Try again.

anonymous · Answer

v = 1/3 pi * r^2 * h

directrix · Answer

Correct.

anonymous · Answer

1/3 3.14*23.4^2*37.5 = 21491.73 ... it isn't one of my options.

directrix · Answer

The formula calls for radius. The 23.4 is the diameter. So, take half the diameter and then square what you get. Then, it should work out. Try again. I'll wait.

anonymous · Answer

1/3 3.14 * 11.7^2 * 37.5 = 5372.9325

anonymous · Answer

You're a life saver. (: @Directrix

directrix · Answer

I used just pi in my calculation.

(1/3)*pi*(23.4/2)^2*37.5 = 5375.66 approx

anonymous · Answer

I deserve a medal for effort. lol.

directrix · Answer

Did the problem state to use 3.14 as an approximation for pi?
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The only way to get stronger in math is to practice. Practice ups performance. The mistakes make you stronger. Seriously.

directrix · Answer

BTW, I ran your calculation through with the 3.14 and got what you did.