Explaining the equation for a circle

Curated and Reviewed by Lesson Planet

This Explaining the equation for a circle activity also includes:

Answer Key
Join to access all included materials

By first starting with an explicit example of a radius and center point, this challenging lesson tries to help high schoolers gain an understanding of the Pythagorean theorem and the equation of a circle. Once they have accomplished the first task, they move toward developing a generalized equation of a circle.