Question

If an angle formed by perpendicular lines has a ray in its interior coming from the vertex of the right angle, what do we call the relationship of the two angles? Select one: a. Right angles b. Corresponding angles c. Alternate interior angles d. Complementary angles

Answer 1

The ray divides one of the right angles into two smaller angles, but we are not told whether or not the smaller angles are equal or unequal.  These two angles are complementary angles.  Why? Because their sum is 90 degrees (definition of complementary angles).

Answer 2

Complementary angles (they add to 90 degrees).