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28 May, 13:38

Surface area of a cone with a radius of 7.9cm and a slant height of 3.7

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  1. 28 May, 14:17
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    Formula for surface area of a cone: A=πr (r + sqrt h^2+r^2)

    SA = π 7.9 (7.9 + sqrt 3.7^2 + 7.9^2)

    Put that in a calculator and you get:

    SA = 412.57cm^2
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