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Answer:
x=15°
Step-by-step explanation:
extend line cd so that it meet line ae at point m
1) ab ║ cd
∴ ∠emc =∠ eab ... corresponding angles
∴∠emc=112°
2) ∠mcd = 180° ....straight line
∴ major ∠ecd = 233 - 180
∴ ∠ecd = 53°
3) let ∠mec = x
in Δmce
∠m+∠c+∠e= 180....sum of interior angles of a triangle
∴112+53+x= 180
∴x=15°
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