The circumference C of a circle with radius r is calculated using the formula below.
C=2Ï€ rFrom the exercise, we know that the circumference of the circle is 78feet. By substituting 78 for C in the formula, we can calculate r.
We found that the radius rounded to the nearest hundredth is 12.41feet. Now, to find the diameter we can multiply the radius by 2.
2* 78/2π≈ 24.83 ft
The circle's diameter rounded to the nearest hundredth is 24.83feet.
