Question

in the adjoining figure lines ab and CD intersect at f.<EFA=<AFD and<CFB =50 degree find <EFC​​

Answer 1

Step-by-step explanation:

Angle efa+angle afd+angle efc=180 degrees (linear pair)

Afd=50 degree (vertically opposite)

50+50+efc=180 degree

Hence efc=80 degree

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