The figure is a solid with the trapezium PQRS as its uniform cross-section. Find its volume
A.
120m2
B.
576m3
C.
816m3
D.
1056m3
Correct answer is C
Volume of solid = cross section x H
Since the cross section is a trapezium
= \(\frac{1}{2} (6 + 11) \times 12 \times 8\)
= 6 x 17 x 8 = 816m3