There are many ropes keeping a hot air balloon from floating away before a race. One of these ropes is fixed to the ground at a 45-degree angle. Another is to the 21 feet. 1 rope 2, the hot air balloon is 21 feet off the ground. What is the distance between the ground directly underneath the balloon and the second rope rounded to the nearest 12?
a) 10 feet
b) 14 feet
c) 18 feet
d) 22 feet
