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In the figure, ABCD is a cyclic quadrilateral in which DC produced to E and CF is drawn parallel to AB such that ∠ADC = 80° and ∠ECF = 20°, then ∠BAD = ?

(1) 100° 

(2) 20° 

(3) 120° 

(4) 110°

1 Answer

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by (47.8k points)
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Best answer

Answer is (3) 120°

In the figure 

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