New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The radius of a cylinder is 3 cm and its height is 10

    cm. What is its total surface area?
    A 175 cm² Correct Answer Incorrect Answer
    B 150 cm² Correct Answer Incorrect Answer
    C 245 cm² Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Total surface area of a cylinder = 2πr(r + h) = 2 × π × 3 × (3 + 10) ≈ 245 cm². 

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