A boat drops an anchor to the bottom of a lake. The anchor rope makes a 15 degree angle with the boat. The anchor rope is 24 feet long. To the nearest foot how deep is the lake?
I drew a diagram and used (sin=opp/hyp) = sin15=opp/24 and got 6.211
Note that the rope makes an angle of 15 degrees with the boat. We are looking for the side that is adjacent to that angle - (the opposite side would tell us how far the end of the rope is from the boat. Consider the rope as the "hypoteneuse"...what relates the adjacent and the hypoteneuse??)