Question

Find the volume of the figure. Round to the nearest tenth if necessary. (Use 22/7 for ∏)

A)228.7 m3
B)288.8 m3
C)288.4 m3
D)234.5 m3

The Diameter is 7m
The Height is 15m
The 3D Object: Cylinder

Answer 1

What 3D object are you talking about?

Answer 2

Cylinder @GoldPhenoix

Answer 3

If you're talking about a cylinder, then you can use the formula, \[r^2\Pi x Height\] The diameter of the cylinder is 7. We want to find the radius. So you divide 7 by 2 to get the radius, 3.5. Now plug it in,
\[3.5^2 x \frac{ 22 }{ 7 } x 15\] \[3.5^2 = 12.25\] \[12.25 x \frac{ 22 }{ 7 } x 15\] \[12.25 x \frac{ 22 }{ 7 } = 38.5\] 38.5 x 15 = 500.5.

Answer 4

Hm.. What did I do wrong...

Answer 5

38.5*15= 577.7
But that is still wrong though..But I'm not sure what you did wrong. @GoldPhenoix

Answer 6

http://www.online-calculators.co.uk/volumetric/cylindervolume.php

Answer 7

The radius is 3.5 and the height is 15. It should give you 577.5. The choices are wrong.

Answer 8

Dang. Okay, this is one of my problems for homework. I just chose a random answer and it said it was 288.8m3

Answer 9

@GoldPhenoix