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29 October, 23:25

A tin man has a head that is a cylinder with a cone on top. The height of the cylinder is 12 inches and the slant height of the cone is 6 inches. The radius of both the cylinder and the cone is 4 inches. What is the surface area of the tin man's head in terms of pi?

A) 136π in2

B) 152π in2

C) 168π in2

D) 172π in2

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  1. 29 October, 23:49
    0
    the cylindar wall = circumference * height = (2pi) (4) (12)

    the cone = 1/2 circumference * slant height = 1/2 (2pi (4) * 6)
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