In this lesson, we will learn how to use the corollaries of the isosceles triangle theorems to find missing lengths and angles in isosceles triangles.

Students will be able to

Q1:

For which values of 𝑥 and 𝑦 is 𝐴𝐷 a perpendicular bisector of 𝐵𝐶?

Q2:

Determine whether 𝐴𝐸 is a perpendicular bisector of 𝐵𝐶.

Q3:

In the diagram, 𝐴𝐵=6 and 𝐵𝐷=5.

Find 𝐴𝐶.

Find 𝐶𝐷.

Nagwa uses cookies to ensure you get the best experience on our website. Learn more about our Privacy Policy.