Geometry and TrigonometryVery hardCone volume from a matching cylinder
Geometry and Trigonometry practice question
A cone and a cylinder have the same radius and the same height. The volume of the cylinder is 60 cubic inches. What is the volume of the cone, in cubic inches?
Answer: 20
A cone's volume is one third of the cylinder's with the same base and height: 60/3 = 20.
Common wrong answers
- If you answered 30
- 30 halves instead of taking a third.
- If you answered 60
- 60 treats them as equal.
- If you answered 180
- 180 triples instead of dividing.
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