Measurement lab

Pi Unwrapped

See the constant relationship

How many diameters fit around every circle?

CircumferenceDiameter
A circle and its circumference unwrapped into a straight ribbon Change the radius with the slider. The circle, diameter, circumference ribbon and measurements update together. d = 10 cm C = 31.42 cm ONE FULL TURN AROUND THE CIRCLE
Circumference ÷ diameter31.42 ÷ 10 = 3.142