Inscribed Angles and Arcs help?

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1 Answer
CW
Mar 1, 2018

angleA=106^@

Explanation:

ABCD is a cyclic quadrilateral. In a cyclic quadrilateral, opposites angles add up to 180^@
=> angleA+angleC=180,
=> angleA+74=180,
=> angleA=180-74=106^@

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