SOLUTION: In a triangle ABC if AC = BC and angle ∠B = 55°, find value of angle ∠C.

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Question 973972: In a triangle ABC if AC = BC and angle ∠B = 55°, find value of angle ∠C.
Answer by Boreal(15235) About Me  (Show Source):
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This is an isosceles triangle with base AB and equal legs AC and BC. Because angle B is 55deg, angle A is also 55deg. They add to 110 degrees, which requires angle C= 70 degrees.