so from this given deatils result that angle x and y are supplementary what mean that angle x and angle y assumed has a measure of 180 degrees
given that angle x is 3 time the measure of angle y
so this mean that x=3y => 3y +y = 180 => 4y=180 => y=180/4 = 45
so angle y has a measure of 45 degrees
x = 3y so angle x = 3*45 = 135 degrees
the last choice is right sure
