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In isosceles triangle ABC, AB=AC.If B=55, calculate A​
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In isosceles triangle ABC, AB=AC.If B=55, calculate A​

User Hetzroni
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3 votes

sorry i can't help :(

User Terrel Shumway
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6.0k points
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Answer: ∠A = 70°

because ABC is an isosceles triangle and AB = AC

=> ∠B = ∠C = 55°

=> ∠A = 180-(∠B + ∠C) = 180° - 55°.2 = 70°

Explanation:

User BFry
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