The measure of an angle is 103°. What is the measure of its supplementary angle?

77

Step-by-step explanation:

Let's let the unknown number be x.

Supplementary angles add up to a total of 180 degrees. Since we already know one angle is 103, this means that:

Subtract 103 from both sides:

So, the measure of its supplementary angle is 77 degrees.

And we are done!

the argument of alfred t. mahan, henry cabot lodge, and albert j. beveridge was the economically and mass production the the americans could not consume themselves. this led expansion to sell to other foreign nations for profits.

step-by-step explanation:

this is my explanation