Question

Which of the following pairs of angles are supplementary?

• A. ${128}^{\circ },{62}^{\circ }$
• B. ${113}^{\circ },{47}^{\circ }$
• C. ${154}^{\circ },{36}^{\circ }$
• D. ${108}^{\circ },{72}^{\circ }$

Answer 1

The correct option is D ${108}^{\circ },{72}^{\circ }$

A pair of angles are said to be supplementary, when they add up to 180 degrees.

128° + 62°= 190°. Hence, the given pair of angles are not supplementary angles.
113° + 47°= 160°. Hence, the given pair of angles are not supplementary angles.
154° + 36°= 190°. Hence, the given pair of angles are not supplementary angles.
108° + 72°= 180°. Hence, the given pair of angles are supplementary angles.