1. The problem statement, all variables and given/known data A plane flies a square route with each side 1500m in length (north, west, south then east) If a wind was blowing from the east at 20 km/h the entire trip, find the total time it will take for the plane to complete the journey, given that the plane is flying at 80 km/h 2. Relevant equations t = d/v vog = vom + vmg????? (except this is in the air) 3. The attempt at a solution since its a square, i figure the relative velocity of all directions will be the same. i used pythagorean theorem to find the velocity of the plane when it is affected by the wind. i got 82.46 km/h. then i used the formula t = d/v. i used 1500m x 4 (because there are 4 routes in the square). converted this to 6 km. then divided it by the relative velocity (82.46 km/h) this worked out to be around 262 seconds. the answer is supposed to be 280 seconds. what did i do wrong?