Respuesta :

Hi1315

Step-by-step explanation:

[tex]2 \times \pi \: \times r = 18 \\ \frac{2\pi \: r}{2\pi} = \frac{18}{2\pi} \\ r adius= 2.86in \\ diameter = 5.72in[/tex]

Officialalehpeter

Answer: radius= 2.866

Diameter = 5.732

Step-by-step explanation:

Circumference of a circle is 2pir

Circumference = 2pir

Circumference =18inch

18=2pir

Pi= 3.14

18= 2×3.14×r

R= 18/2×3.14

R= 2.866

R= ~3inches

Diameter = 2radii

Diameter= 2×radius

Diameter = 2×2.866

Diameter = 5.732

Diameter = ~6