Why is the volume of a sphere V=4/3*pi*r^3? (calculus disk method)
22:02
Integral formulas for area, volume (disk method), arc length, & surface area
7:10
Why is the volume of a cone 1/3*pi*r^2*h? Here's a proof with the disc method! Calculus basics
7:21
Volume of a sphere with a triple integral
4:14
The Volume of a Sphere - Numberphile
13:55
Imaginary numbers aren't imaginary
38:22
Disc/Washer Method vs. Shell Method (rotated about different lines)
14:41
Find the Volume of Any Shape Using Calculus
17:06