Posted by **Rose** on Thursday, February 5, 2009 at 4:20pm.

A tunnel under a river is 196.8 ft below the surface at its lower point. If the angle of depression of the tunnel is 4.962 degrees, then how far apart on the surface are the entrances to the tunnel in feet? I have tan 4.962= 196.8/x but I think I did something wrong?! Thanks

## Answer this Question

## Related Questions

- math - a tunnel under a river is 196.8 ft below the surface at its west point. ...
- physics - Assume a planet is a uniform sphere of radius R that (somehow) has a ...
- Physics - A projectile is fired with a velocity u at the entrance A to a ...
- Circle geometry! - A circular tunnel, 20 m in diameter is blasted through a ...
- Math - Question: A tunnel with a parabolic arch is 12 m wide. If the height of ...
- physics - a train goes into a tunnel at 20m/s and emerges from itat 55m/s. the ...
- physics - Assume that the Earth is spherical and recall that latitudes range ...
- physics - Suppose a spherical planet P has a uniform density of 4.96*10^3 kg/m^3...
- physics - Assume that the Earth is spherical and recall that latitudes range ...
- trig - A tunnel for a new highway is to be cut through a mountain that is 260 ...

More Related Questions