# Proofs Practice

- Author:
- C Morrell, Tim Brzezinski

- Topic:
- Congruence, Triangles

**BIG WHITE POINTS**anywhere you'd like on the screen!

## Q1:

What did you notice when you slid the black bar at the bottom? How did the sides and angles compare in both triangles?

## Q2:

Are the triangles exactly the same? Are there any sides or angles that are not exact? How do you know?

## Q3:

To be considered congruent, you need to prove that some corresponding pieces in the triangles are exactly the same. How many corresponding sides and/or angles could you say are congruent based on the markings? Do you think that's enough to prove that the triangles are the same?

## Q4

Below are 4 reasons we use to prove triangles congruent in Geometry. Which one do you think makes sense based on the markings in this diagram? Angle-Angle-Side (AAS) Side-Angle-Side (SAS) Side-Side-Side (SSS) Angle-Side-Angle (ASA)

## Q5:

Below are 4 reasons we use to prove triangles congruent in Geometry. Which one do you think makes sense based on the markings in this diagram? Angle-Angle-Side (AAS) Side-Angle-Side (SAS) Side-Side-Side (SSS) Angle-Side-Angle (ASA)