A circular flower bed is 2m in diameter. If roses are ti be planted 3dm apart along the edge, how many roses are to be planted

Question

A circular flower bed is 2m in diameter. If roses are to be planted 3 dm apart along the edge, how many roses are to be planted?

Answer 1

2 meters = diameter

1 meter = radius

circumference = pi(r^2) = pi(1)^2 = pi = about 3.141593 m = 31.41593 dm

1 dm = .10 m

1 m= 10 dm

if a rose is planted every 3 dm

then about 31/3= about 10 roses are planted around the circular garden