If two angles of a triangle add up 110° , what is the measure of the third angle?

1 answer

The sum of the three angles of a triangle is always 180°.

If two angles of a triangle add up to 110°, then the sum of the three angles can be expressed as:

110° + Third Angle = 180°

Subtracting 110° from both sides we get:

Third Angle = 180° - 110°

Third Angle = 70°

Therefore, the measure of the third angle is 70°.