Trig Help!

Question

A blimp provides aerial television views of a football game. The television camera sights the stadium at a 7° angle of depression. The altitude of the blimp is 400 meters. Which of the following is the line-of-sight distance from the television camera to the base of the stadium? Round to the nearest meter. The answer is 3,282 but explain how?

Answer 1

Draw and label a diagram.
d represents the line of sight distance
sin 7° = 400 / d

Can you solve for d?

Answer 2

tan(7^o) = Altitude / Distance

 

So

 

Distance = Altitude / tan(7^o) = 400/0.1228 = 3257.74 

 

I am notsure