Define the following terms:
(i) Angle
(ii) Interior of an angle
(iii) Obtuse angle
(iv) Reflex angle
(v) Complementary angles
(vi) Supplementary angles
(i) Two rays OA and OB, with a common end-point O, form an angle AOB that is represented as
(ii) The interior of an angle is the set of all points in its plane, which lie on the same side of OA as B and also on the same side of OB as A.
(iii) An angle greater than $90^{\circ}$ but less than $180^{\circ}$ is called an obtuse angle.
(iv) An angle greater than $180^{\circ}$ but less than $360^{\circ}$ is called a reflex angle.
(v) Two angles are said to be complementary if the sum of their measures is $90^{\circ}$.
(vi) Two angles are said to be supplementary if the sum of their measures is $180^{\circ}$