Boating across a river, the current moves you downstream. Instead of going directly

across the river, the boat moves at a

angle. If the river is 420 feet across, how far downstream will you end up?

Question

Boating across a river, the current moves you downstream.  Instead of going directly

across the river, the boat moves at a 

 angle.  If the river is 420 feet across, how far downstream will you end up?

anonymous · Answer

Depends on the angle. We don't have the measure here, although it looks like you intended to post it originally.

anonymous · Answer

copy and paste fail

anonymous · Answer

10 Degree angle . !! Sorry about that

anonymous · Answer

OK, then you have this triangle|dw:1368583013690:dw|

anonymous · Answer

And x is just 420 times the tangent of 10 degrees, because tangent=opposite/adjacent.

anonymous · Answer

Okay ! And then what do i do ?

anonymous · Answer

Find the tangent of ten degrees, then multiply by 420 feet.

anonymous · Answer

i got 74

anonymous · Answer

Looks about right.