In the adjacent figure if angle A is 40 degrees, CE// BA and angle ECD is 55 degrees find angle ACB and angle ABC
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Step-by-step explanation:
AngleBAC=angleACE....(alt interior angle)
So,
Angle ACE=65 dgree
Angle ACB+ angleACE + angle ECD= 180 degree....(linear pair)
Angle ACB+65 degree + 60 degree=180 dgree
Angle BCA=(180-125) degree
Angle BCA=55 degree (Ans).
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