Presentation on theme: "Congruence in Right Triangles"— Presentation transcript:
1 Congruence in Right Triangles Learning Target: I can prove right triangles congruent using HL Theorem
2 Right Triangles contain ·one right angle ·two legs (sides beside the right angle)·one hypotenuse (side opposite the right angle)legshypotenuse*do not assume the legs are congruentright angle
3 Hypotenuse-Leg Theorem (HL Theorem) If the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of another right triangle, then the triangles are congruent.
4 What additional information you would need to use the HL Theorem. 1.2.3.NoneRight AnglesA pair of legs4.5.Right angles.Hypotenuses
5 Think about these when trying to write proofs To use the HL theorem, you must show·there are two right angles·the triangles have congruent hypotenuses·there is one pair on congruent legsThink about these when trying to write proofs