Question

A fire on A 150ft. Tall tower Spots A Fire At a 30degree angle of depression. About how many feet away from this tower was the fire.
( i have 4 multiple choice answers : 86.6ft. , 129.9ft , 259.8ft. & 300ft.)

Answer 1

Diagram as a right triangle height = 150ft, d the other leg and a 30 degree angle opposite d.
tan30 = d/150
150(0.577) = d
d = 86.6 feet

Answer 2

No opp angle is 60

tan(60) = d/150

d = 150sqrt(3)

Answer 3

thank you @Nurali

Answer 4

Anytime.