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
E
50m
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
XZ = 40 x sin30o
= 20m
Source: Myschool Past Questions Archive (Record #22350)