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    Question

    The base of a right pyramid is a square with diagonal 16

    units. Its slant edge is 17 units. What is its vertical height?
    A 12 Correct Answer Incorrect Answer
    B 15 Correct Answer Incorrect Answer
    C 30 Correct Answer Incorrect Answer
    D 25 Correct Answer Incorrect Answer

    Solution

    Let the height of the pyramid be h cm According to the question, 12 = h² + (d/2)2 172 = h² + 82 h² = 289-64   h² = 225   h = √ 225 h = 15 cm Its vertical height is 15 cm.

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