Elisabeth V.
asked • 03/13/20
The inner ring of a hula hoop has a radius of 18 inches. What is the circumference of the inner ring?
Arturo O.
answered • 03/13/20
Experienced Physics Teacher for Physics Tutoring
C = 2πr
You know r. Plug it into the equation and evaluate.
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Elisabeth V.
don't know how to do it03/13/20