I would use the Law of Sines to solve this problem. The angle next to the 58 degree angle is 122 degrees. The side opposite this angle is 3.72 km. The angle we need to find is at the cave. The side opposite this angle is 2.60 km. (Sin 122/3.72) = (Sin x/2.60) Cross multiply to solve. 3.72 Sin x = 2.60 Sin 122 Divide both sides by 3.72 Sin x = (2.60 Sin 122)/3.72 Sin^-1 x = (2.60Sin122)/3.72 x = 36 degrees
The
temperature which has best degree of precision would actually be the
temperature reading which has similar decimal place with the error. So the best
answer would have 1 decimal and from the choices given above, this would be:
