SOLUTION: From a boat at sea, the angle of elevation of the top of the cliff is measured as 12 mils. If the cliff is known to be 90 m high, how far is the boat from the cliff? Note: 6400 mil

Algebra ->  Triangles -> SOLUTION: From a boat at sea, the angle of elevation of the top of the cliff is measured as 12 mils. If the cliff is known to be 90 m high, how far is the boat from the cliff? Note: 6400 mil      Log On


   

Question 1142822: From a boat at sea, the angle of elevation of the top of the cliff is measured as 12 mils. If the cliff is known to be 90 m high, how far is the boat from the cliff? Note: 6400 mils= 360 degrees. Thanks.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
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Note: 6400 mils= 360 degrees.
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12%2Amils%2A%28360%2F6400%29%28degrees%2Fmils%29
0.675 degrees

d, distance from boat to cliff bottom
90%2Fd=tan%280.675%29
d%2F90=1%2Ftan%280.675%29
highlight%28d=90%2Ftan%280.675%29%29