SOLUTION: one angle of an obtuse triangle is four times the first angle, while the third angle is 30 degrees less than the first angle. what are the degree measures of the three angles?

Question 779058: one angle of an obtuse triangle is four times the first angle, while the third angle is 30 degrees less than the first angle. what are the degree measures of the three angles?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
one angle of an obtuse triangle is four times the first angle, while the third angle is 30 degrees less than the first angle. what are the degree measures of the three angles?
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1st angle:: x
2nd angle:: 4x
3rd angle:: x-30
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Equation:
x + 4x + x-30 = 180
6x = 210
x = 35 degrees
4x = 140 degrees
x-30 = 5 degrees
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Cheers,
Stan H.
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