Mathematics for IGCSE & O level - Mensuration (Section 12 - No. 45)
Which of the following shapes can be used to approximate the volume of a frustum?
A combination of two cones
A cylinder
A cube
A combination of a cone and a cylinder
הֶסבֵּר
The volume of a frustum can be understood by recognizing it as a cone with a smaller cone removed, which implies relating it to cones.