Answer:
180.
Step-by-step explanation:
Given
x = 1%2F2y
x+y=180
...
Substitute x into the second equation and solve for y, the larger angle
1%2F2y + y = 180
Multiply both sides by 2 to be rid of the fraction
y + 2y = 360
3y = 360
highlight_green%28y=120%29
...
Check cartoon%28%0D%0A120+%2B+%281%2F2%29%28120%29%2C%0D%0A120+%2B+60%2C%0D%0A180%29
