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Question
In a triangle ABC if BC is the base, ∠B is 60° ,and AB-AC=0, then the value of the angle opposite to the side BC _____.
In a triangle ABC if BC is the base, ∠B is 60° ,and AB-AC=0, then the value of the angle opposite to the side BC _____.
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Solution
The correct option is A 60°
Given that AB - AC = 0, that will be true only if AB = AC. Also it is given that ∠B = 60°.So it is clear that the given triangle is an isosceles triangle with one base angle 60°. Hence the triangle will be an equilateral triangle.
∴angle opposite to side BC = 60°
Given that AB - AC = 0, that will be true only if AB = AC. Also it is given that ∠B = 60°.So it is clear that the given triangle is an isosceles triangle with one base angle 60°. Hence the triangle will be an equilateral triangle.
∴angle opposite to side BC = 60°
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