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Deducing Properties of Equilateral Triangles

In a triangle...

Question

In a triangle ABC, ∠B = 60° and ∠C = 80°. Suppose the bisector of ∠B and ∠C meet at I. Find ∠BIC.

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Solution

According to the given information, triangle ABC can be drawn as shown below.

In ,

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Q. In a triangle ABC,

∠ B = 60^{o}

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Deducing Properties of Equilateral Triangles

Standard VIII Mathematics

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