1.

The angle of elevation of the top of the tower from a point on the ground is $${\sin ^{ - 1}}\left({\frac{3}{5}} \right).$$If the point of observation is 20 meters away from the foot of the tower, what is the height of the tower?

A. m
B. 8 m
C. 5 m
D. 2 m
Answer» D. 2 m


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