The curved surface area of a cylinder 5cm high is 110cm2. Find the radius of its base
π = \(\frac{22}{7}\)
- 2.6cm
-
3.5cm
- 3.6cm
- 7.0cm
The correct answer is: B
Explanation
Curved surface area of cylinder = 2πrh110 = 2 × \(\frac{22}{7}\) × r × 5
r = \(\frac{110 \times 7}{44 \times 5}\)
= 3.5cm
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