If r = 8 units and x = 8 units, then what is the volume of the cylinder shown above?
A. 64 cubic units
B. 512 cubic units
C. 256 cubic units
D. 2,048 cubic units
To find the volume of a cylinder, we can use the formula:
V = πr^2h
Given that r = 8 units and x = 8 units, we can assume that x represents the height (h) of the cylinder. Let's substitute the values into the formula:
V = π(8^2)(8)
= π(64)(8)
= π(512)
Now, to find the volume, we need to know the value of π (pi). The value of π is approximately 3.14. Let's calculate the volume:
V ≈ 3.14(512)
≈ 1,608.32
Therefore, the volume of the cylinder is approximately 1,608.32 cubic units. However, none of the provided answer choices match this value exactly. Therefore, it appears that there may be a mistake in the question or answer choices.
V = pi * r^2 ^ h
http://math.about.com/od/formulas/ss/surfaceareavol_3.htm