SOLUTION: How do you prove the median from the vertex angle of an isos. triangle is also an angle bisector?
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Question 372213: How do you prove the median from the vertex angle of an isos. triangle is also an angle bisector?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The median from the vertex angle bisects the base forming two triangles. The base angles are equal and the long sides of the two formed triangles are equal because the original triangle was isosceles. So by SAS the two formed triangles are congruent and therefore the two angles formed at the vertex by the median are congruent by CPCT.
John
My calculator said it, I believe it, that settles it
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