Break it down into parts and then add together all the areas which are:-
15+15+24+24+40+40 = 158 square inches
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90 cubic inches.
(2 x 3 x 4) + (2 x 3 x 6.5) + (2 x 4 x 6.5) = 24 + 39 + 52 = 115 square inches
A cylinder with a radius of 7in and a length of 3in has a total surface area of about 439.82 square inches.
Total surface area is 439.82 square inches.
6 sqin