114+74+2x+y=360

Question

for the sum of all int angles in a trapezoid

Answer 1

114+74+2x+y=360

A trapezoid has 4 internal angles.

Assuming 114 and 74 are two of these angles, then

2x +y = 172 defines the limits of x and y.

But if y=0°, then x = 86 or if x= 0°°, y=172°