Question

Help I don’t know the steps

Answer 1

down below

Explanation:

straight lines are 180 degrees and you have 2 angles on a line. one of which is 72 and the other is unknown. It is solved for below.

`180=72+x\\180-72=72+x-72\\108=x`

your missing degree is 108.

i may not be right, if i'm not i am very sorry.