In order for a button to fit through its buttonhole, the hole needs to be the size of the button's diameter.. What size buttonhole is needed for a button with a circumference of 9.42 centimeters?
The buttonhole should be 3 centimeters in order for the button to fit through it. The circumference of a circle is equal to the diameter multiplied by pi. So to get the diameter, the circumference is simply divided by pi which is 3.14.
