The diameter of the smaller base of a frustum of a cone is 4 in. The diameter of the larger base is three times the diameter of the smaller base. The angle between a slant height and a radius of the larger base is 43°. Find each answer and round to the nearest tenth.

1. the surface area of the frustum

The diameter of the smaller base of a frustum of a cone is 4 in The diameter of the larger base is three times the diameter of the smaller base The angle betwee class=


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