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4-6: Congruence in Right Triangles

4-6: Congruence in Right Triangles. Right Triangles. A. Hypotenuse – the side across from the right angle Always the longest side in a right triangle!. Legs – the other two sides. C. B. 1 more way to prove triangles congruent… but its only for right triangles!!!!!.

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4-6: Congruence in Right Triangles

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  1. 4-6: Congruence in Right Triangles

  2. Right Triangles A • Hypotenuse – the side across from the right angle • Always the longest side in a right triangle! Legs – the other two sides C B

  3. 1 more way to prove triangles congruent…but its only for right triangles!!!!! Hypotenuse-Leg (HL) Theorem – If the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the triangles are congruent.

  4. HL Theorem (Hypotenuse-Leg Theorem) • To use the HL Theorem, you must have all three: • 2 right triangles • Congruent hypotenuses • 1 pair of congruent legs

  5. HL Proofs C A D B E

  6. HL Proofs W Z J K

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