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| 1. |
In a triangleABC, AB=AC. Suppose the bisector of angleACBmeets AB at M. Let AM+MC=BC. Prove angleBAC= 100∘ |
| Answer» In a triangleABC, AB=AC. Suppose the bisector of angleACBmeets AB at M. Let AM+MC=BC. Prove angleBAC= 100∘ | |