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+1 vote
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in Mathematics by (8.0k points)
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In a ΔABC, if ∠A=120° and AB = AC. Find ∠B and ∠C.

1 Answer

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Best answer

Consider a ΔABC

Given that A=120° and AB= AC and given to find B and C

We can observe that ΔABC is an isosceles triangle since AB=AC

⇒ B=C  .........(1)  [Angles opposite to equal sides are equal]

We know that sum of angles in a triangle is equal to 180°

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