Warm up. 4.3 Analyzing Triangle Congruence Two new shortcuts: AAS HL.

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Presentation transcript:

Warm up

4.3 Analyzing Triangle Congruence Two new shortcuts: AAS HL

Angle Angle Side Triangle congruence can be proved if two angles and a NON-included side of one triangle are congruent to the corresponding angles and NON-included side of another triangle, then the triangles are congruent. 60° 70° 5 m 60° 70° 5 m These two triangles are congruent by AAS

Hypotenuse Leg This SPECIAL shortcut is ONLY for right triangles. If the hypotenuse and a leg of a right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent. 6.5 cm 4.5 cm 6.5 cm If this wasn’t a right triangle, what postulate would it appear to be? These two triangles are congruent by HL

We’re done taking notes, now we just have to use them ♥ Get out paper and pencil Turn to page 232 We’ll do 25 & 26 together. ♥Draw the quadrilateral given in #25. ♥Label your drawing ♥Start a 2 column proof… make a table with “Statements” and “Reasons” ♥As you fill in your table with the ‘givens’, mark those things on your drawing. ♥When you are done marking and listing, are you able to prove what needs to be proved? ♥Follow the same steps for #26

Your Assignment ♥Pg 231: ♥Pg 234: Look Back 44-50