Question

    The base of a pyramid is an equilateral triangle whose each side is 10 cm. Its slant edge is 30 cm. What is the total surface area (in cm²) of the pyramid?

    A 75√3 +15√3 Correct Answer Incorrect Answer
    B 45√35 +5√3 Correct Answer Incorrect Answer
    C 5√35 +25√3 Correct Answer Incorrect Answer
    D 75√35 +25√3 Correct Answer Incorrect Answer

    Solution

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