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the given angles lie on a straight line so form linear pairs in each case
the opposite angles of a cyclic quad r equal
so angle dab=180-110=70degree
and angle cba=180-95=85 degree
so the sum is 85+70=155 degree
the opposite angles of a cyclic quad r equal
so angle dab=180-110=70degree
and angle cba=180-95=85 degree
so the sum is 85+70=155 degree
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