We can find the measure of angle one by using the fact that angle seven is supplementary to the angle that is 115°. Since it is supplementary, that means that its value + 115° = 180°. Subtracting 115° from each side, we can see that m< 1 = 65°.
We can find the measure of angle two by knowing that it is a vertical angle to the angle that is 115°. Since it is a vertical angle, and from the vertical angles theorem we know that vertical angles are equal in measure, m< 2 = 115°.
We can find the measure of angle 3 by knowing that it is a corresponding angle to the angle that measures 115°. Since it is corresponding, we know that it is equal, meaning that the measure of angle 3 is 115°.