Question

in a triangle ABC if AB=AC, angle A = 100 degree then find Angle B and angle C

Answer 1

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Answer 2

Answer:

40 degree

Step-by-step explanation

AB=AC

SO, angleC= angleB

now, angleA+angleB+angleC=180 degree

100+angleB+angleC=180 degree

angleB+angleC=80 degree

angleB+angleB=80 degree

angleB=40 degree

angleB=angleC=40 degree