Question

Which of the following are supplementary angles?

75 and 75
90 and 15
101 and 89
81 and 99
80 and 10

Answer 1

The pair of supplementary angles from the given options is 81 and 99.

Step-by-step explanation:

In this question, we need to find the pairs of angles that are supplementary. Supplementary angles are two angles whose sum is equal to 180 degrees.

Out of the given options:

• 75 and 75 do not sum up to 180 degrees, so they are not supplementary.
• 90 and 15 sum up to 105 degrees, so they are not supplementary.
• 101 and 89 sum up to 190 degrees, so they are not supplementary.
• 81 and 99 sum up to 180 degrees, so they are supplementary.
• 80 and 10 do not sum up to 180 degrees, so they are not supplementary.

Therefore, the correct pair of supplementary angles from the given options is 81 and 99.