Calculus 3 Lesson 82: Tangent Planes & Area of Parametric Surfaces

Jul 28, 2026

Hi there! Today I have released Lesson 82 of my Calculus 3 series. In this lesson we learn about tangent planes and surface area of parametric surfaces!

Specifically you will learn:

  1. How to find normal vectors of parametric surfaces
  2. How to find tangent planes for parametric surfaces
  3. How to find surface area of parametric surfaces

I hope you enjoy this new lesson for Calculus 3! Next time we'll take a look at a new type of integral known as the Surface Integral.

Until then,

- Josh

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