SOLUTION: we are trying to find measurement of < x (< meaning angle) of a triangle. one inner angle is 30 degrees and one outer angle is 50 degrees. X is the other angle. How do we figur

Question 279749: we are trying to find measurement of < x (< meaning angle) of a triangle. one inner angle is 30 degrees and one outer angle is 50 degrees. X is the other angle. How do we figure it out?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
we are trying to find measurement of < x (< meaning angle) of a triangle. one inner angle is 30 degrees and one outer angle is 50 degrees. X is the other angle. How do we figure it out?
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The inner angle adjacent to the 50 degree outer angle is
the supplement of 50 degrees and is therefore 130 degrees.
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You now know two on the interior angles: 30 and 130.
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Equation:
30 + 130 + x = 180
160 + x = 180
x = 20 degrees
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Cheers,
Stan H.
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