Proving Triangles Congruent by Angle-Side-Angle Postulate

In this video, you will explore the Angle-Side-Angle (ASA) Postulate. Two triangles are congruent using the ASA Postulate when two corresponding angles and the included side of one triangle are congruent to the corresponding angles and the included side of another triangle. Click the player button to begin.

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Proving Triangles Congruent by Angle-Angle-Side Theorem

In this video, you will explore the Angle-Angle-Side (AAS) Theorem, which states that when two angles and a non-included side of one triangle are congruent to two corresponding angles and a non-included side of another triangle, the triangles are congruent. Click the player button to begin.

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Triangle Congruence: ASA and AAS Review

Now that you have learned about the ASA Postulate and the AAS Theorem, review your knowledge in this interactivity. Click the player button to get started.