A) The two angles are equal.
(INCORRECT) Angle c is obviously smaller than Angle d, so they are not equal.
B) The two angles are 90 degrees.
(INCORRECT) the angles are either acute or obtuse angles, so they are not right angles.
C) The two angles are supplementary.
(CORRECT) supplementary angles are two or more angles that equal 180. If you put the two angles together, it will become a straight angle.
D) The two angles are complementary.
(INCORRECT) complementary angles are when there are two or more angles that equal. Angles c and d do not equal a right angle.
