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
AnswerD.
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