Problem 76 of 7
Use the converse of the isosceles base angles theorem for angle B and angle C are 45 degrees in triangle BCD.
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infer congruent sides from congruent angles.
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Congruent angles must be angles of the same triangle.
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Solution
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1. Identify the congruent angles.
2. Find the sides opposite those angles.
3. Conclude those opposite sides are congruent.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Claiming sides adjacent to the congruent angles are equal.