The volume of the figures are
1. 160in³ ( option 4)
2. 800 ft³( option 3)
Volume is the amount of space occupied by a three-dimensional object. It is measured in cubic units and represents the capacity or extent of an object in terms of its dimensions.
1. The volume of pyramid is expressed as;
V = 1/3bh
where b is the base area and h is the height
V = 1/3 × 4 × 12 × 10
V = 480/3
V = 160 in³
2. The Volume of a prism is expressed as;
V = base area × height
V = 1/2 × 8 × 10 × 20
V = 4 × 10 × 20
V = 800ft³