How to find the angles of the parallel lines 1&4
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52+ <5 + 47 = 180
99 + < 5 = 180
< 5 = 81
<3 = 47 degrees alternate interior angles are equal
<3 +<4 = 180 straight line
47 +<4=180
<4 = 133
<2 =52 degrees alternate interior angles are equal
<1 +<2 = 180 straight line
<1 +52 = 180
<1 =128
' x ' doesn't appear anywhere in the drawing, so we can't use anything in the drawing to find its value.