The radius is r = 1.5 feet of a circle when circumference of a circle is 3pi ft.
What is meant by a circle's circumference?
The circumference of a circle can be found using
circumference=pi × diameter
3π = π × d
3π/π = d
3 = d
radius = d/2
r = 3/2
r = 1.5 feet
Therefore , radius is r = 1.5 feet of a circle .
Learn more about circumference of a circle
brainly.com/question/11213974
#SPJ9