Question

We know that <5 and <7 are supplementary. <7 and <9 are also supplementary because it is

Answer 1

given that <5 and <7 are supplementary and <7 and <9 are also supplementary. This means that the sum of the measures of <5 and <7 is equal to 180 degrees, and the sum of the measures of <7 and <9 is also equal to 180 degrees.

Supplementary angles are angles that add up to 180 degrees. In this case, since <5 and <7 are supplementary, their measures must add up to 180 degrees. Similarly, since <7 and <9 are supplementary, their measures must also add up to 180 degrees.

So, we can conclude that <5 + <7 = 180 degrees and <7 + <9 = 180 degrees.