Cone & Frustum of Cone Calculator
Cone volume = (π • r² • h) / 3 Lateral area = (π • r • slant height)
Frustum
Do you know cone? If you remove the top point horizontally, it will be a truncated cone. It should be a cylinder. The top view is two circles nested, and the front view is a trapezoid.
Let the radius of the upper base be r, the radius of the lower base be R, and the height be h
Then V= (1/3)*π*h*(R^2 + Rr +r^2)
The volume of the truncated cone = (π • height • (Ra^2 + Ra • Rb + Rb^2) / 3)
Side area = (π • (Ra + Rb) • slant height)