Calculate the Radius When Circle Circumference is 80 Units

Question

Calculate the radius using the circumference given in the figure:

00:00 Find the circle's radius (R)

00:04 We'll use the formula for calculating circle circumference

00:10 We'll substitute appropriate values according to the given data and calculate to find the radius

00:14 We'll isolate radius R

00:28 We'll substitute the value of pi and calculate to find radius R

00:38 And this is the solution to the problem

12.732