Please answer question 3
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Diagonal s of a rectangle are perpendicular to each other.
Thus
angleOAB=angleOBA=28°
angleOAB+angleOBA+angleAOB=180°(angle sum property of triangle)
=>28°+28°+angleAOB=180°
=>angle AOB=180°--28°--28°
=180°--56°
=126°
Thus
angleOAB=angleOBA=28°
angleOAB+angleOBA+angleAOB=180°(angle sum property of triangle)
=>28°+28°+angleAOB=180°
=>angle AOB=180°--28°--28°
=180°--56°
=126°
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