Question

27

Question
A hula hoop has a diameter of 44 inches. What is the circumference of the hula hoop? Use 3.14 for pi

Answer 1

138.16 inches

Explanation:

C=Circumference. r=radius. d=diameter

C=2πr

C=2π(d/2) ==> a radius is half of a diameter

C=2(d/2)π

C=dπ ==> simplify

C=44π

C=44*3.14

C=138.16 inches