Find the radius of a circle that has a circumference of 340 cm.

Accepted Solution

The formula for the circumference of a circle is C = 2[tex] \pi [/tex]r

So we just plug in the given information and work backwards.

340 = 2[tex] \pi [/tex]r. 

Divide by 2[tex] \pi [/tex] to isolate the variable r. 

r = 340 / 2[tex] \pi [/tex] 

radius = 170[tex] \pi [/tex] or the radius is ≈ 534.071 cm.