Answer:
try letter B
Step-by-step explanation:
and can you be my friend
2 over -1 im pretty sure that's it we just learned this like 2 weeks ago
A supplementary angle is an angle in which two of it's measurements can be added to equal 180 degrees.
For example, a measure of 130 and a measure of 50 in the same shape.
They can both be added to equal 180.
