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angle ELK = 180-105=75degrees
angle LEF = 180-75-40
=65degrees
= angle EKM (as AB is parallel with CD)
angle EMK = 180-110=70degrees
a= 180-70-65=45degrees
angle LEF = 180-75-40
=65degrees
= angle EKM (as AB is parallel with CD)
angle EMK = 180-110=70degrees
a= 180-70-65=45degrees