( iii ) The base of the solid is ABCD and its height is 10.9 cm.

The volume, V, of the solid is given by

V = 1/3 x area of base x height

Calculate the volume of the solid.

1 answer

First, we need to find the area of the base of the solid. Since the base is a rectangle ABCD, we can find the area by multiplying the length and width of the rectangle.

Given that BC = 7.2 cm and AD = 5.6 cm,

Area of base = length x width
Area of base = BC x AD
Area of base = 7.2 cm x 5.6 cm
Area of base = 40.32 cm²

Now, we can substitute the values into the formula for the volume of the solid:

V = (1/3) x Area of base x height
V = (1/3) x 40.32 cm² x 10.9 cm
V = (1/3) x 440.928 cm³
V = 147.31 cm³

Therefore, the volume of the solid is 147.31 cm³.