how do you answer this

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Feb 18th, 2015

Sum of all angles in a triangle is equal to 180

x + 30 +2x - 10 + 70 = 180

3x + 90 = 180

3x = 90

x = 30 degrees

Angle A = 60 degrees

Angle B = 50 degrees

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Feb 18th, 2015

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Feb 18th, 2015
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