Why is a Pyramid like a Cone?
Try increasing the number of sides:
Also try moving points A and B.
The volume formulas are the same:
V = 13 × (Base Area) × Height
For a circular cone the base area is πr2 (where r is radius) so we get:
Volume of Circular Cone = 13 × (πr2) × Height
For a square pyramid the base area is s2 (where s is side length) so we get:
Volume of Square Pyramid = 13 × (s2) × Height
For other pyramids we just have to work out the base area.
Right vs Oblique
And it doesn't matter if it is right (top directly above base) or oblique (slanted), the volume formula still works, but remember:
The height is at right angles to the base!