Question

in fig AB parallel to CD find the value of angle FCE ? explain

Answer 1

Answer- Please see the following attachment
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Answer 2

AB║CD        GIVEN ∠ BAF=80∠ FEC=45AB║CD and line Eis extended to beyond A∠ BAF =∠ DFA  =180                  CORRESPONDING ANGLE80+∠DFA=180∠DFA=100 ∠DFA=∠EFC   100=∠EFG∠ FEC+∠EFG+∠FCE=180               sum of the Δis 18045+100+∠FCE=180145+∠FCE=180 ∠FCE=180-145∠FCE=35