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Question
Calculate AB.
Sum
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Solution
In ΔMOA,
`cos 30^circ = (AO)/(MO)`
`=> sqrt(3)/2 = (AO)/6`
`=>` AO = 5.20 m
In ΔBNO,
`sin 47^circ = (OB)/(NO)`
`=> 0.73 = (OB)/5`
`=>` OB = 3.65 m
AB = OA + OB
`=>` AB = 5.20 + 3.65
`=>` AB = 8.85 m
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