abcd is a cyclic quadrilateral in which angle a is equals to 2 x + 4 angle b is equals to x + 10 and angle c is equals to 4y-4 and angle d is equal to 4y-4,find x and y
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https://www.meritnation.com/ask-answer/question/abcd-is-a-cyclic-quadrilateral-such-that-angle-a-4y-20/math/2526727
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