Using the Hinge Theorem to Compare Sides of a Triangle - Congruent Triangles

The video tutorial explains the hinge theorem, which applies when two triangles have two congruent sides and an included angle. The theorem states that if the included angle of one triangle is larger than that of another, the side opposite the larger angle is longer. The tutorial uses an example with angles of 90 and 80 degrees to demonstrate this concept, concluding that the side opposite the 90-degree angle is longer.

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