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The curved surface area of a right circular cylinder of height 25 cm is 3300 cm2. Find the diameter of the base of the cylinder.1. 12 cm2. 23 cm3. 21 cm4. 42 cm5. None of these |
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Answer» Correct Answer - Option 4 : 42 cm Given: Curved surface area of cylinder = 3300 cm2 Height of cylinder = 25 cm Formula used: Curved surface area of cylinder = 2π × radius × height Calculation: 2 × (22/7) × radius × 25 = 3300 ⇒ Radius = (3300 ×7)/(2 × 22) ⇒ Radius = 21 cm ∴ Diameter = 2 × 21 = 42 cm |
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