All angles in a quadrilateral add to 360
x is supplementary to that other angle, call it y
the angles inside are 40, 80, 110 and y
40+80+110+y=360
230+y=360
minus 230 both sides
y=130
that is supplementary to x (adds to 180)
x+y=180
x+130=180
minus 130 both sides
x=50
x=50 degrees
Answer:
It 20.54 round to the nearest tenth which is 20.5
Step-by-step explanation:
The answer is to the top question is (false)
Answer:
C
Step-by-step explanation:
C is what I get when I put it into desmos. someone else may be able to explain why