Hello!
Triangles ALWAYS measure 180°. One angle is 25°. In the other side, the length is the same, 10. That must mean that the other angle is also 25°
First add 25 and 25
[tex]25 + 25 = 50[/tex]
Now, subtract 50 from 180 because 180 is the total and 2 of the angles measure 50° together.
[tex]180 - 50 = 130[/tex]
[tex]\framebox{Your answer is A. 130 \°}[/tex]
