What is the radius of a circle with circumference 13 feet?

Circumference = Pi x Diameter

Diameter = 2Radii

Circuference =3.141592 x 2R

13 =3.141592 x 2R        divide both sides by Pi x 2

R = 13 /[2 x 3.141592]

R =2.069 feet- The Radius of the circle.