3 years ago

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

Mathematics

2 answers:

den301095 [7]3 years ago

4 0

Answer: ∠A = 70°

because ABC is an isosceles triangle and AB = AC

=> ∠B = ∠C = 55°

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

Step-by-step explanation:

vivado [14]3 years ago

4 0

sorry i can't help :(

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