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19-04-2017
Mathematics

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

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19-04-2017

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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