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The exterior angle at C if a triangle is ABC IS =120 degree find the measure of all the angles of a triangle if angle A= angle B
7 years ago

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Answered by Steve
C=180-120=60
so, since B=A,
A+A=60 = 180
...
7 years ago
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The exterior angle at C if a triangle is ABC IS =120 degree find the measure of all the angles of a triangle if angle A= angle B

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