Mensuration
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What you'll learn
Volume and surface area of pyramids, cones, and spheres, worked forward from given dimensions and backward from a given volume or area.
- A pyramid's volume is one third of a matching prism's
- A cone is just a pyramid with a circular base
- A sphere's volume uses the radius cubed
- A sphere's surface area uses the radius squared
- A cone's slant height comes from Pythagoras, not the vertical height
- Work backwards from a given volume or area to find a missing dimension