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The curved surface area of a cylinder 5cm high is 110cm2. Find the radius of…

The curved surface area of a cylinder 5cm high is 110cm2. Find the radius of its base
π = (frac{22}{7})
  • A.
    2.6cm
  • B.
    3.5cm
  • C.
    3.6cm
  • D.
    7.0cm
Correct Answer: Option B
Explanation

Curved surface area of cylinder = 2πrh
110 = 2 × (frac{22}{7}) × r × 5
r = (frac{110 times 7}{44 times 5})
= 3.5cm

There is an explanation video available below.

Explanation Video