What is the radius of a 4 cm circle?
The radius of a circle is the distance from the center of the circle to any point on its circumference. The easiest way to find the radius is by dividing the diameter in half. If you don’t know the diameter but you know other measurements, such as the circle’s circumference, you can still find the radius by using the formulas and isolating the r{\displaystyle r} variable.
Good luck!!