Why is the volume of a sphere V=4/3*pi*r^3? (calculus disk method)
7:21
Volume of a sphere with a triple integral
14:41
Find the Volume of Any Shape Using Calculus
22:02
Integral formulas for area, volume (disk method), arc length, & surface area
4:14
The Volume of a Sphere - Numberphile
11:51
4 Horsemen of Integration Mistakes!
15:51
But why is a sphere's surface area four times its shadow?
24:46
Why π is in the normal distribution (beyond integral tricks)
28:08