Sophia Learning
Sophia: Notation for Congruent Parts
Explore the notation used to represent congruent sides and angles in a triangle. Take a quiz to assess learning.
Virtual Nerd
Virtual Nerd: How Do You Identify Corresponding Parts in Congruent Triangles?
Follow along with this tutorial to understand how to identify corresponding sides and angles. [7:31]
Khan Academy
Khan Academy: Triangles: Finding Congruent Triangles
This video uses the SSS, ASA, SAS, and AAS postulates to find congruent triangles.
Khan Academy
Khan Academy: Triangles: Congruent Triangle Example 2
Students watch a video tutorial showing that segments have the same length using triangle congruence properties.
Khan Academy
Khan Academy: Triangles: Congruent Triangles and Sss
This video tutorial explains how to use triangle congruence to identify measures of corresponding sides and angles in triangles. Defines side-side-side (SSS) postulate.
Khan Academy
Khan Academy: Basic Triangle Proofs Module Example 2
A video proving that the given triangles are congruent by ASA.
Khan Academy
Khan Academy: Using Similar & Congruent Triangles
Sal uses the similarity of triangles and the congruence of others in this multi-step problem to find the area of a polygon.
Sophia Learning
Sophia: Sas Triangle Congruence: Lesson 3
This lesson will explain that demonstrating that two pairs of sides are equal in length and that the included angles are equal will suffice in showing that two triangles are congruent. It is 3 of 5 in the series titled "SAS Triangle...
Sophia Learning
Sophia: Sas Triangle Congruence: Lesson 5
This lesson will explain that demonstrating that two pairs of sides are equal in length and the included angles are equal will suffice in showing that two triangles are congruent. It is 5 of 5 in the series titled "SAS Triangle...
Sophia Learning
Sophia: Sas Triangle Congruence: Lesson 1
This lesson will explain that demonstrating that two pairs of sides are equal in length and that the included angles are equal will show that two triangles are congruent. It is 1 of 5 in the series titled "SAS Triangle Congruence." [1:48]
Sophia Learning
Sophia: Triangle Congruence Theorem (Hl): Lesson 4
This lesson will present the Hypotenuse-Leg Triangle Congruence Theorem. It is 4 of 5 in the series titled "Triangle Congruence Theorem (HL)." [2:47]