Question

The area of the base of a prism is 24 mm^2. The perimeter of the base is 22 mm. The height of the prism is 5 mm.
Solve for the surface area of the prism.

Answer 1

Since perimeter of a base is:
P = 2L + 2W = 2(8) + 2(3) = 22

Therefore, W = 3mm

Since H = 5mm
SA = 2(Areabase) + 2(W*H)
SA = 2(24mm^2) + 2(3mm*5mm)
SA = 78 mm^2

The surface area of the prism is 78 square millimeters.

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