Question

    The radius of the base of a conical tent is 9 m and its

    height is 12 m, find the cost of the material needed to make it if it costs ₹100 per π m².
    A ₹14,500 Correct Answer Incorrect Answer
    B ₹13,000 Correct Answer Incorrect Answer
    C ₹15,000 Correct Answer Incorrect Answer
    D ₹13,500 Correct Answer Incorrect Answer

    Solution

    Hence, the curved surface area of the conical tent = π × 9 × 15 = 135π m² Thus, the cost of the material = (135 π × 100) / π = Rs. 13,500 .. The cost of the material is Rs. 13,500.

    Practice Next

    Relevant for Exams: