Question

1. In triangle ABC if AB = AC and measure of angle BAC = 40°then the measure of angle B & angle C
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Answer 1

Answer:

angle B = angleC = 70

Step-by-step explanation:

angleA + angleB + angleC =180

[angleB = angleC] as AB=AC

angleA + 2(angleB) =180

2(angleB) = 180 -40

angleB = 140÷2

angleB = 70 = angleC