Question

Trig function help? (Sin, Cos, Tan)?
3. A forest ranger spots a fire from a 28-foot tower. The angle of depression from the tower to

the fire is 11 .
To the nearest foot, how far is the fire from the base of the tower? Show the steps you use to find the solution.

Answer 1

So what do I use? @ranga

Answer 2

tan(ABC) = opposite / adjacent = AC / AB
tan(11) = 28 / AB
AB = 28 / tan(11) = ?
(set you calculator to degree and not radians)

Answer 3

I am using a google calculator xD

Answer 4

then set your Google calculator to degrees.

Answer 5

What are you getting?

Answer 6

-0.1239

Answer 7

no wait I got 144.0475

Answer 8

Yes. Round it to the nearest feet. So 144 feet.