If?ABD ? ?CEB then two pairs of triangles are congruent in this figure. Give both of them and state which congruence principles apply and why.


Pair One: ?ADB ? ?CEB by SAS
Pair Two: ?DAB ? ?ECB by CP
AB ?CB by CP
?AEB ? ?CDB since ?DEB is an isosceles triangle
DE ? ED by the reflexive property, therefore DC ? EA by adding two congruent line segments ?AEB ? ?CDB by SAS

Mathematics

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