The radius of a cylinder is halved and the height is tripled. What is the area of the curved surface when compared to the same area previously?
Step by Step Explanation:
- The curved surface area of a cylinder is 2πrh.
- If the radius is halved and the height is tripled.
- Putting this into the formula, we see that the curved surface area becomes:
× r × 3 × h
= 1.5 times.
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