Question 135118
Two angles of a triangle are measured 52 and 89 degrees. How do i find the third angle. 
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The sum of the angles in every normal triangle is 180 degrees.
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EQUATION:
Let the measure of the 3rd angle be "x" degrees.
52+89 + x = 180
x + 141 = 180
x = 39 degrees
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Cheers,
Stan H.