SOLUTION: 10. If angle s =49 and angle t = 11, then angle r = ______.

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Question 182744: 10. If angle s =49 and angle t = 11, then angle r = ______.
Answer by Alan3354(69443) About Me  (Show Source):
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If angle s =49 and angle t = 11, then angle r = ______.
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If they're all angles in the same triangle, then r = 120º.
The sum of the angles of all (planar) triangles is 180º.