# math

posted by HOney Galo

A salvage ship's sonar locates wreckage at a 12 angle of depression. A driver is lowered 40m to the ocean floor. How far does the driver need to walk along the ocean floor to the wreckage?

1. Steve

geez - impatient much?

2. John

You have a right angle triangle. Just remember where the angle of depression goes and what it means. Then you have the TAN theta ratio with 40 being the adjacent side, and x being the opposite side. And do the math.

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