Help, I have no clue what do do!

A forest ranger sports a fire from a 21-foot tower. The angle of depression from the tower to the fire is 20 deg. Use the Pythagorean Thoream to find the shortest distance from the top of the tower to the fire. Show the steps please!

Question

Help, I have no clue what do do!

A forest ranger sports a fire from a 21-foot tower. The angle of depression from the tower to the fire is 20 deg. Use the Pythagorean Thoream to find the shortest distance from the top of the tower to the fire. Show the steps please!

anonymous · Answer

well so far that's 21^2 + b^2 = c^2
got any other information about the side lengths?

anonymous · Answer

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anonymous · Answer

That what I've figured out so far (we had to find the hypotenuse, which I got to be 61 ft)