Question

Using the figure below, if the m21= 55°, what is the m2?

Answer 1

Since the angles are supplementary, they add up to 180

So you would subtract 180-55 which equals 125

Answer 2

Answer:
`125^(\circ)`

Explanation:

Angles that form a straight angle are supplementary, so:

`m\angle 1+m\angle 2=180^(\circ)\\ \\ 55^(\circ)+m\angle 2=180^(\circ)\\ \\ m\angle 2=\boxed{125^(\circ)}`