A right circular cylinder has radius $5$ and height $10$. What is its **volume**?
A$125\pi$
B$250\pi$
C$50\pi$
D$100\pi$
Answer & Solution
Correct answer: B. $250\pi$
$V = \pi r^{2} h = \pi \cdot 25 \cdot 10 = 250 \pi$.
- Trap A ($50 \pi = 2 \pi r h$ partial) uses $r$ instead of $r^2$.
- Trap C ($125 \pi = \pi r^2 \cdot 5$) uses wrong height.
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