Mensuration Practice Test 2

Question : 29 of 40

Marks: +1, -0

The base of a solid prism is a right triangle whose sides are 9 cm, 12 cm, and 15 cm. The height of the prism is 5 cm. Then, the total surface area of the prism is:

180 $cm^2$
234 $cm^2$
288 $cm^2$
270 $cm^2$

Validate

Solution:

Total surface area of prism = 2 (Area of base) + (perimeter of base) × height)
= 2 (54) + (36 × 5)
= 108 + 180
= 288

cm^2

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