Related rates: volume and height of a filling cone | Calculus (derivatives)

Related rates in Calculus is a technique for determining the value of one derivative via an implicit time relationship. This fully-worked problem is between the volume of a fluid in a cone, and the height of the fluid. I practice my five steps for related rates problems.

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0:00 Step 1: Draw
2:04 Step 2: Relate V and h
4:04 Step 3: Differentiate with respect to time
5:28 Step 4: Substitute
6:10 Step 5: Solve for dh/dt
6:36 Common mistakes, and reflection.