The volume of the cylinder whose radius is 9 units and height is 15 units is 215π unit³. The correct option is B.
What is the volume of a right circular cylinder?
Suppose that the radius of the considered right circular cylinder is 'r' units.
And let its height be 'h' units.
Then, its volume is given as:
[tex]V = \pi r^2 h \: \rm unit^3[/tex]
The right circular cylinder is the cylinder in which the line joining the center of the top circle of the cylinder to the center of the base circle of the cylinder is perpendicular to the surface of its base, and to the top.
The radius of the given cylinder is 9 units, while the height of the given cylinder is 15 units. Therefore, the total volume of the given cylinder will be,
The volume of the cylinder = πR²h
= π × (* units)² × 15 units
= 1215π unit³
Hence, the correct option is B.
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