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Sophia Learning
Sophia: Finding the Equation of a Circle: Lesson 1
This lesson derives the equation for a circle starting from the distance formula. It is 1 of 9 in the series titled "Finding the Equation of a Circle." [3:58]
Sophia Learning
Sophia: Finding the Equation of a Circle: Lesson 3
This lesson derives the equation for a circle starting from the distance formula. It is 3 of 9 in the series titled "Finding the Equation of a Circle." [4:32]
Imagine Learning Classroom
Learn Zillion: Prove the Pythagorean Theorem: Using Similar Triangles
In this lesson, you will learn how to prove the Pythagorean Theorem by using similar triangles. [4:54]