How to find angle 1? Would I subtract from 180 even though it is not a triangle?

<2 + 95 = 180 straight line
<2 = 180-95 = 85
right angle +144 + <2 + <1 = 360 degrees ( quadrilateral)
substitute knowns
90 +144 +85 +<1 = 360
combine like terms
319 +<1 =360
<1 =41