Respuesta :

Answer:

103

Step-by-step explanation:

We know supplementary angles equal 180 degrees. So the problem will be:  180 - 77 = 103

Answer:

103 degrees

Step-by-step explanation:

Supplementary angles add up to 180 degrees.  Thus, the supplement of 77 degrees is (180 - 77) degrees, or 103 degrees.