Question

You want to install a 1 yard wide sidewalk around a circular swimming pool. The diameter of the pool is 20 yards. What is the distance around the outside edge of the new sidewalk?

Answer 1

Answer:

42pi or 131.95 yards

Step-by-step explanation:

circumfrence of a circle is 2*pi*r

since you added a side wall 1 yard wide you increase the radius of the circle by one yard

so 2*pi*21= 42pi or 131.95 yards