Answers

  • Brainly User
2016-01-03T18:09:10+08:00
Angle of Elevation:

tan θ =  \frac{opposite}{adjacent}
 
Opposite the angle of elevation (height of the tower) = x
Angle of elevation = 30°
Adjacent (shadow cast by the tower) = 78.2 meters

Equation:

tan 30 =  \frac{x}{78.2}

x = (tan 30) (78.2)
      (In scientific calculator, enter 30, then press "tan")

x = (0.577)(78.2)

x = 45.12 

ANSWER:  The tower is 45.12 meters high.

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