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WAEC - Mathematics (2009 - No. 41)

If /XY/ = 50m, how far cast of X is Y?
25.5m
40.6m
40.8m
43.3m

解释

Required distance = x

where \(\frac{1}{50m}\) = sin 60 x 50m x 0.866

x = 43.3m

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