mellycastaneda06 mellycastaneda06

26-04-2021
Mathematics

contestada

What is the clrcumference of a circle with a diameter of 9 Inches?

28 2/7 in

24 4/7 in

30 in

27 in

Respuesta :

charlenee charlenee

26-04-2021

28 2/7 in
explanation:
use the formula C=2pi(r)
d=2r
if diameter is 9 inches, we know the radius is 9/2 so r is 4.5
plug in 4.5
C=2(pi)(4.5)
C= 28.27 or 28 2/7 in

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