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23 February, 17:12

A cone has a base that is a shape of a circle. The length across is 16 feet. The height is 8 feet and the slant height is 10 feet. What is the lateral area of the cone using 3 for pi

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  1. 23 February, 20:37
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    The answer to your question is Surface area = 432 ft²

    Step-by-step explanation:

    Data

    diameter = 16 ft

    height = 8 ft

    slant height = 10 ft

    pi = 3

    Process

    1. - Write the formula to calculate the surface area

    Surface area = pi x radius x slant height + pi x radius²

    2. - Substitution

    Surface area = (3 x 16/2 x 10) + (3 x (16/2) ²)

    -Simplification

    Surface area = 240 + 192

    -Result

    Surface area = 432 ft²
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