100° 40°, 2x degrees it's degrees would be what on a triangle

To find the third angle of a triangle, we can use the fact that the sum of all angles in a triangle is 180 degrees.

Let's denote the third angle as A.

The sum of the three angles in the triangle is given by:
100° + 40° + A = 180°

Now, let's solve for A:
A = 180° - 100° - 40°
A = 40°

Therefore, the third angle of the triangle is 40°.