Composite solids are just a combination of simpler solids in disguise.
To find the volume of composite solids such as these:
The exception to these steps is when the solid we are looking at is more simply considered as a larger solid with a smaller solid cut out of it, like these ones.
In this case we would
Find the volume of the figure shown, correct to two decimal places.
Calculate volumes, including prisms, pyramids, cones, and spheres, using formulae
Apply measurement in solving problems