Answer:
β = 140 - α
we know that the "missing" angle is 40° since 40 + 140 = 180
we also know that the total sum of angles in a triangle is 180
so β = 180 - 40 - α
or β = 140 - α
Step-by-step explanation:
2x+3m=p because you don't know how many people there are you put a variable in place for that
Answer:
4th option
Step-by-step explanation:
open circle means more than or less than
n is more than -3 but less than 1
