Respuesta :

circumference of a circle = 2πR

Since  circumference of a circle =12π in.(given)

Then: 12π=2πR

Simplify by π===>12 =2R===>divide both sides by 2

R=6 in

Answer:

Option (a) is correct.

radius of circle whose circumference is [tex]12\pi[/tex] inches is 6 inches.

Step-by-step explanation:

Given : circumference of a circle is [tex]12\pi[/tex] inches

We have to find the radius of circle whose circumference is [tex]12\pi[/tex] inches.

Circumference is the  distance of the outer  path of the circle.

Circumference of circle is given as  [tex]2\pi r[/tex]

We know circumference = [tex]12\pi[/tex] inches

Substitute, we get,

[tex]12\pi=2\pi r[/tex] inches

Solving for r,

Divide both sides by [tex]\pi[/tex] , we get,

[tex]12=2 r[/tex] inches

Divide both side by 2, we get,

r = 6 inches

Thus, radius of circle whose circumference is [tex]12\pi[/tex] inches is 6 inches.

Option (a) is correct.

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