9514 1404 393
Answer:
9 m
Step-by-step explanation:
A 30°-60°-90° triangle is a "special" right triangle. It is worthwhile to remember that the ratio of side lengths is ...
1 : √3 : 2
The shortest side (h) is 1/2 the length of the longest side (18 m).
h = 9 m
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In case you want to exercise your trigonometry, you recognize that the sides of interest in the question are the side opposite the angle, and the hypotenuse. The appropriate relation is ...
Sin = Opposite/Hypotenuse . . . . . . . from SOH CAH TOA
sin(30°) = h/(18 m)
h = (18 m)sin(30°) = (18 m)(1/2)
h = 9 m
