in a triangle abc angle acd=110° and angle a angle b are opposite angles angle a=x°, angle b= y°.find angle a and angle b
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As AB=AC hence ∠B=∠C (Equal sides AB=AC have equal opposite angles)
Using theorem, Sum of interior angles of a triangle is 180
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Therefore ∠A+∠B+∠C=180
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⇒110
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+2∠B=180
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[GIven ∠A=110
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]
⇒∠B=35
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Hence, ∠B=∠C=35
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