Lines and Angles

What is the sum of the angles on a straight line?

If two lines are parallel, what is the sum of the interior angles on the same side of the transversal?

Two angles are complementary. If one angle is 35°, what is the measure of the other angle?

In triangle ABC, if angle A = 50° and angle B = 60°, what is the measure of angle C?

If two lines intersect and one of the angles formed is 120°, what is the measure of the adjacent angle?

In the figure, two parallel lines are cut by a transversal. If one alternate interior angle is 70°, what is the measure of the corresponding angle?

If the exterior angle of a triangle is 120°, and one interior opposite angle is 50°, what is the other interior opposite angle?

Lines l and m are parallel. If the angle between a transversal and line l is 55°, what is the angle between the transversal and line m?

In triangle ABC, if angle A = 3x, angle B = 2x + 10, and angle C = x + 20, find the value of x.

Two lines intersect such that one of the vertically opposite angles is (2x + 10)° and the adjacent angle is (3x - 20)°. Find x.