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What is A?

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1 Answer
Mar 8, 2018

Answer:

#88^circ#

Explanation:

Opposite angles of a cyclic quadrilateral add up to #180^circ#

So #/_B+/_D = 180^circ implies x+116^circ = 180^circ implies x = 64^circ#

So #/_A = 2x-40^circ=2times 64^circ-40^circ = 88^circ#