Use the Triangle Angle Sum Theorum to find the measure of the third angle of the triangle if the measure of two angles are 34.6 ° and 52.8°.

1 answer

The Triangle Angle Sum Theorem states that the sum of the angles in any triangle is always 180°.

Let's denote the measure of the third angle as x.

According to the theorem, we can write the equation:

34.6° + 52.8° + x = 180°

To find the measure of the third angle, we can solve this equation:

87.4° + x = 180°

Subtracting 87.4° from both sides of the equation:

x = 180° - 87.4°

x = 92.6°

Therefore, the measure of the third angle is 92.6°.