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| Math Central | Quandaries & Queries |
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Question from Nazrul, a teacher: In the triangle ABC, AB>AC and the bisector AD of angle BAC intersects BC at D. How can I prove that angle ADB is an obtuse angle. |
Hi Nazrul,
What does the fact that the length of $AB$ is larger than the length of $AC$ tell you about the measures of the angles $ABC$ and $BCA?$
Penny
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