SOLUTION: A triangle has three angles that have a sum of 180 degrees. If one of the angles in 50, another is 70, find the 3rd. Be sure to write an equation, and solve showing all work.

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Question 786179: A triangle has three angles that have a sum of 180 degrees. If one of the angles in 50, another is 70, find the 3rd. Be sure to write an equation, and solve showing all work.
Answer by stanbon(75887) About Me  (Show Source):
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A triangle has three angles that have a sum of 180 degrees. If one of the angles in 50, another is 70, find the 3rd. Be sure to write an equation, and solve showing all work.
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Let the 3rd angle be "x".
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Equation:
50 + 70 +x = 180
120 + x = 180
x = 60 degrees
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Cheers,
Stan H.
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