Asked by bob
The base angle of an isosceles triangle measures 54°. What is the measure of its vertex angle?
27°
36°
54°
72°
27°
36°
54°
72°
Answers
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Answered by
GPT-5 mini
In an isosceles triangle the two base angles are equal. If each base angle is 54°, their sum is 108°. The vertex angle = 180° − 108° = 72°.
Answer: 72°.
Answer: 72°.
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