Derive the formula for the volume of a right circular cone with radius r and height h by revolving an appropriate region about the x-axis. Sketch the region.

Right Circular Cone
Height of cone = h radius of cone =r
Let’s consider a right triangle of height h and base r(above fig). h is along the x- axis. By revolving
this triangle around x-axis we can get a cone.
To calculate the volume of cone, let’s consider a strip of width dx from distance x...