A=120°
B=34°
C=?
He was the triangle some theorem to find the measure of the third angle of the triangle shown
The sum of the angles in a triangle is always 180°. Therefore, to find the measure of the third angle, we can use the equation:
A + B + C = 180°
Given that A = 120° and B = 34°, we can substitute those values into the equation:
120° + 34° + C = 180°
Simplifying the equation:
154° + C = 180°
Subtracting 154° from both sides:
C = 180° - 154°
C = 26°
Therefore, the measure of the third angle, C, is 26°.