A simple guide on how to show the circumference of a circle is π x diameter aimed at children aged between 11 and 14 ...

Or: Circumference of the earth = (360 x Distance between points)/ (Difference in angle) Spoiler? The circumference of the earth between poles is 40,008 kilometers.

This KS2 maths article explains how to measure the radius, circumference and diameter of a circle.

It’s a mathematical constant used to calculate the circumference of a circle. Here are slightly more than seven things you might not know about it, including ways to celebrate locally.

Every year, the celebration of Pi Day (March 14 is 3.14) grows more ambitious. Math teachers love to dream up unique classroom activities to celebrate Pi for it endless opportunity to calculate (3 ...