Question

in fig AB II CDIIEF find the value of x​

Answer 1

angle ECD = 180-130 ( co interior angles )

angle ECD = 50°

angle BCD = angle ABC

x+50=80

x= 80-50

x= 30° ( required answer )

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Answer 2

Heya

_______________________________

x + ( 180 - 130 ) + ( 180 - 80° ) = 180

x + 50 + 100 = 180

x = 30°