The measure of the missing angle is [tex]25^\circ[/tex]. So, the first option is correct.
Important information:
- Measure of the first angle is 35 degrees.
- Measure of the second angle is 120 degrees.
We need to find the third angle of the triangle.
Angle sum property:
According to the angle sum property, the sum measure of all interior angles of a triangle is 180 degrees.
Let [tex]x[/tex] be the measure of the missing angle.
[tex]x+35^\circ+120^\circ=180^\circ[/tex]
[tex]x+155^\circ=180^\circ[/tex]
[tex]x=180^\circ-155^\circ[/tex]
[tex]x=25^\circ[/tex]
Thus, the first option is correct.
Find out more about 'Angle sum property' here:
https://brainly.com/question/21099419
