Saturday

August 2, 2014

August 2, 2014

Posted by **rei456** on Thursday, February 11, 2010 at 12:20pm.

- math -
**drwls**, Thursday, February 11, 2010 at 1:52pmAssume a V-shaped profile,with the low point in the middle of the tunnel. If the tunnel length is L,

tan 4.962 = 196.8 ft/(L/2)

0.08682 *L/2 = 196.8

Solve for L

- math -
**Anonymous**, Tuesday, June 29, 2010 at 10:00pm4533.51

**Related Questions**

Math - A tunnel under a river is 196.8 ft below the surface at its lower point. ...

math - . On a day with no wind, a hot-air balloon hovers at a point above a long...

trig - from an observer tower, a ff.above the level of a river,the angle of ...

Math (last question I swear!) - Leroy is 6.5 ft tall and standing on a bridge. ...

Science/Math - West Point lies on the west bank of the Hudson River in New York ...

Math - From the top of a 50m high bridge, two boats are seen at anchor. One boat...

trigonometry - From a mountain 1780 ft. high, the angle of depression of a point...

math - From a mountain 1780 ft. high, the angle of depression of a point on the ...

physics - Assume a planet is a uniform sphere of radius R that (somehow) has a ...

Algebra - I'm fine with angle of elevation problem, but angle of depression ...