Calculus related rates day 2

Remember this is a video I make during my AP calculus class. We do related rates implicit derivation for Pythagorean right triangles, trig angle ratios, similar right triangles, and a cone with vertex down filling with liquid. Draw a picture, label the changing variables, write a formula, implicit derive with respect to time, substitute, and solve.

[FarhanKhan-zvdn]

This video really helped me on my test. Thanks