A cylinder has radius and height . What is its volume in terms of ?
Answer and explanation
Correct answer: B. 63 pi cm^3
- Step 1: Recall the cylinder volume formula: .
- Step 2: Substitute and : .
Answer
63 pi cm^3.
Why not the others: '42 pi cm^3' is surface area calculation; '21 pi cm^3' uses instead of ; '84 pi cm^3' is an arithmetic error.
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