In quadrilateral ABCD, if ∠A = 60° and ∠B: ∠C : ∠D = 2: 3:7, then find ∠D
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Let angle b,c,and d be 2x, 3x and 7x
now, we know that the sum of angles of a quad. is 360.
Therefore, THE ANSWER IS IN PIC
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