What is the exact volume of the cylinder? A. 156 m3 B. 312 m3 C. 1872 m3 D. 2028 m3
its A right
how can we find it because there is no any information given in this question
Well the volume of a cylinder is \[\pi * r ^{2} * h\]
sorry open study is being annoying
13*12 152
By any chance, do those answer choices have a "pi" in them?
yes
156 pi m3 all of them
Well then it's not A. You have to do pi * r^2 * h (which is 12^2 * 13 * pi)
so then C
I agree with comupter
so instead of guessing look at the drawing what is r? What is r^2 (r * r)? What is h? Use the formula given above
i keep messing up
i dont get it
it is a simple multiplication pi * r *r * h put the values for that into your calculator. If you keep messing up ,then practice until you don't
Well, as @MrNood said, you have to identify the parts of the cylinder and then use the formula. Here is a diagram for the parts of a cylinder. http://www.numberempire.com/shapes/images/cylinder_main.png
12*12 144*1872 it is C
@ComputerNerd ?
am i right
Yes
thanks
12 * 12 *13 * pi = 1872 pi m^3
you need to be precise
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