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Bisectors of the angles B and C of an isosceles triangle with AB=AC intersect each other at O. Show that external angle adjacent to ∠ABC is equal to ∠BOC. |
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Answer» Bisectors of the angles B and C of an isosceles triangle with AB=AC intersect each other at O. Show that external angle adjacent to ∠ABC is equal to ∠BOC. |
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