A B D C Given: Prove: ABC is isosceles STATEMENTS REAS

A
B D C
Given:
Prove: ABC is isosceles
STATEMENTS
REASONS
Given
Given
both angles are 90 since
reflexive property of congruence
ASA (angle-side-angle)
CPCTC (corresponding parts of congruent
triangles are congruent)
ABC is isosceles
definition of an isosceles triangle
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