The Triangle Angle Sum Theorem states that the sum of the angles in a triangle is always 180 degrees.
Let's denote the third angle as "x".
According to the theorem, we can set up the equation as follows:
120 + 34 + x = 180
Now, we can solve for "x".
Combining like terms:
154 + x = 180
Subtracting 154 from both sides:
x = 180 - 154
Simplifying:
x = 26
Therefore, the measure of the third angle is 26 degrees.
Use the Triangle Angle Sum Theorem to find the measure of the third angle of the triangle shown.
the two angles are 120 and 34
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