Multiple choice

The curved surface of a cylinder is 4400 cm2 and its circumference of the base is 110 cm. find the volume of cyinder.

  1. 36700 cm3

  2. 36720 cm3

  3. 38500 cm3

  4. 39600 cm3
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

CSA = 2πrh = 4400, circumference = 2πr = 110 → r = 110/(2π) = 17.5cm. Then h = 4400/(2π × 17.5) = 40cm. Volume = πr²h = π × 17.5² × 40 = π × 306.25 × 40 ≈ 38500 cm³. Using π=22/7 gives 38500.

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