Angle x and angle y are supplementary angles. angle y measure 139 degrees what is the measure of angle x

Angle x measures 41 degrees.

Step-by-step explanation:

The sum of two supplementary angles is 180 degrees.

180 - 139 = 41

To prove that:

139 + 41 = 180

I hope this helped! :-)

cheater

step-by-step explanation:

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: