The triangle angle sum theorem states that the sum of the interior angles of a triangle is 180 degrees.
Given that the first angle measures 60 degrees and the second angle measures 40 degrees, the sum of these two angles is:
60 + 40 = 100 degrees
To find the measure of the third angle, we can subtract the sum of the first two angles from 180 degrees:
180 - 100 = 80 degrees
Therefore, the measure of the third angle is 80 degrees.
Use the triangle angle sum theorem to find the measure of the third angle if the first and second angle measured 60 and 40
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