Math 1312 Section 3.3 Analyzing Isosceles Triangles ...

Isosceles Triangle Theorem: If two sides of a triangle are congruent, then the angles opposite those sides are congruent. AND (converse): If two angles of a triangle are congruent, then the sides opposite those angles are congruent. Example: ∆DEF is isosceles. ∠D is the vertex angle. m∠E =2x+40 and m∠E =3x+22 . Find the measures ................
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