Around swimming pool has a circumference of 66 feet. carlos wants to buy a rope to put across the diameter of the pool. the rope costs $0.45 per foot, and carlos needs 4 feet more than the diameter of the pool. how much will carlos pay for the rope? (example 3)
find the diameter.
c = πd
≈ 3.14 d
/3.14 ≈ 3.14 d/3.14
=d
find the cost.
carlos needs feet of rope. × $0.45 = carlos will pay for the rope.