You are sailing from your lakeshore cabin to a marina 60º north of east and 0.5 miles across the lake. On your return trip, you decide to sail directly south and then west to get back to your cabin, forming a right triangle. The hypotenuse is 0.5 miles, and an angle is 60 degrees. How far would you now have to sail?
a) 0.68 miles
b) 0.43 miles
c) 0.25 miles
d) 0.5 miles
