The angle of elevation of X from Y is 30o If XY... - WAEC Mathematics 1989 Question
The angle of elevation of X from Y is 30o. If XY = 40m, how high is X above the level of Y?
A
10m
B
20m
C
20√3m
D
40m
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Correct Option: B
XZ = 40 x sin30o
= 20m
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