Download Proving Triangles Congruent Using ASA

Name: ________________________
Intro to Geometry
Date: ___________
Mrs. Sykes
Do – Now:
Given: BD is an angle bisector of <CBA
BC ≅ BA
Prove: ∆BDC ≅ ∆BDA
Proving Triangles Congruent Using ASA
A __________________
S_________________
A ______________
Which triangle pair is the only pair that correctly represents ASA?
Angle Side Angle – If two angles and the included side of one triangle are congruent to
the corresponding two angles and included side of a second triangle, then the triangles
must be congruent
Questions #1-2: What additional information is needed to prove the triangles are
congruent using the provided method and given information?
1.) Given: <REN ≅ <RVN
2.) Given: BC ≅ DC
Proof Example:
Altitude: is a line that extends from one vertex of a triangle perpendicular to the opposite
side.
Practice Proofs:
1.)
2.)
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