Question

In ∆ABC,AB=AC and angle A=100 then find angle B​

Answer 1

Step-by-step explanation:

is your answer

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Answer 2

Step-by-step explanation:

sum of All angle of triangle is 180

angle A+angle B+angle C =180

100+B+C=180

B+C=180-100

B+C=80

B=C

B+B=80

2×B=80

therefore B=40