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AMO 2020 Secondary 1 (Grade 7) Question 9

AMO · AMO 2020 Secondary 1 (Grade 7)

Question 9

$A,O,F$ lie on a straight line. Rays $OB,OC,OD,OE$ are ordered as shown. Angles $BOD$ and $COE$ are right angles, $\angle COD=32^\circ$, and $\angle AOB=\angle EOF$. Find $\angle AOB$ in degrees.

Question illustration