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Find the four angles of a cyclic quadr...

Find the four angles of a cyclic quadrilateral `A B C D` in which `/_A=(2x-1)^circ` , `/_B=(y+5)^circ\ \ /_C=(2y+15)^circ` and `/_D=(4x-7)^circ` .

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RD SHARMA ENGLISH-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-All Questions
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