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Really trying to pass this exam and graduate can someone smart please help me with these problems im running out of time ..

Really trying to pass this exam and graduate can someone smart please help me with-example-1
User Secretmike
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1 Answer

6 votes

Answer:

1172.08 square inches

Explanation:

Total surface area is area of all the surfaces.

Cylinder:

Top surface = πr^2 = π(4)^2 = 16(3.14) = 50.24

Lateral Surface = 2πrh = 2π(4)(9) = 72π = 72(3.14) = 226.08

Rectangular Prism:

2 sides = 2*(11*11) = 242

front and back = 2*(16*11) = 352

bottom = 16 * 11 = 176

Top part (it is top rectangle - bottom of cylinder) = (16*11) - (π(4)^2) = 125.76

Adding all up, we get:

50.24 + 226.08 + 242 + 352 + 176 + 125.76 = 1172.08 square inches

User Lovechillcool
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