The angle of elevation of a point T on a tower from a point U on the horizontal ground is 30o. If TU = 54m, how high is T above the horizontal ground?
-
A.
108m -
B.
72m -
C.
46.3m -
D.
31.2m -
E.
27m
Correct Answer: Option E
Explanation
sin30 = x/54
x =54 x 1/2
= 27m