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Aptitude · Q53

Mensuration 3d

Competitive Exams · Aptitude · question 53

Q53

The base of a right prism is a trapezium. The length of the parallel sides are 8 cm and 14 cm and the distance between the parallel sides is 8 cm. If the volume of the prism is 1056 cm3, then the height of the prism is

A.
44 cm
B.
16.5 cm
C.
12 cm
Answer
D.
10.56 cm

Answer: Option C

Solution

Answer: Option C
Solution:
Area of trapezium
= × h(AB + CD)
= × 8 × (8 + 14)
= 4 × 22
= 88 cm2
Volume of prism = Height of prism × Area of base
⇒ height × 88 = 1056 (given)
⇒ height =
⇒ height = 12 cm