Act Math Practice
Coordinate Geometry Answer 2
Coordinate Geometry Answer 2:
2. Consider a cone with a height of 12 inches and a radius at its base of 3 inches. What is the volume of this cone?
F. 3p
G. 12
p
H. 36
p
J. 72
p
K. 108
p
The correct answer is H.
To find the volume of a cone, use this formula:
cone volume = (height ´ radius2 ´ p) / 3
Now substitute the values from the problem.
cone volume = (12 ´ 9 ´ p) / 3
cone volume = 36p
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