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8 July, 04:42

You have a cone with a radius of 8 ft and a height of 10 ft. Find the area of the triangle formed by a perpendicular cross-section through the cone's center.

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  1. 8 July, 06:18
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    80ft²

    Step-by-step explanation:

    Given in the question,

    radius of cone's base = 8ft

    cone's base = base of triangle

    height of cone = 10 ft

    height of cone = height of triangle

    Area of triangle

    Area = 1/2 (h) (b)

    here h = height of triangle

    b = base of triangle

    A = 1/2 (8) (10)

    A = 40ft²

    Since the section is 2 similar triangles back to back around the vertical centre so the area cross sectional area of triangle form in the cone is 2 (40) ft² = 80ft²
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