2.7 Isosceles and Equilateral Triangles

2.7 Isosceles and Equilateral Triangles

This is a self-paced lesson. Take notes in your notebook the same way we would complete notes as a class. After you complete the lesson please complete the practice Quizizz. Link is in Canvas.

Open Ended

What can you say about an isosceles triangle, ΔABC, with base angles ∠B and ∠C, if you know that m∠A=100°?

Open Ended

What can you say about the angles of an isosceles right triangle?

Open Ended

If a triangle is equiangular, how do you find the measue of one of its angles?

Open Ended

How do you use the Isosceles Triangle Theorem to find the measures of the base angles of an isosceles triangle, given a known value for the measure of the vertex angle?

Multiple Choice

True or False: If a triangle is equilateral, then the triangle is isosceles"

• true

• false

Open Ended

Essential Question Check-in: Discuss how the sides of an isosceles triangle relate to its angles.

Open Ended

What questions do you have about today's lesson?

This is the end of the lesson.

Complete the Isosceles & Equilateral Triangle Practice Quizizz :)