All circle calculations use the constant π (pi). The circumference close circumferenceThe distance around a circle; its perimeter. divided by the diameter close diameterThe distance across the ...

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

I am Pi, the ratio of the circumference of a circle to its diameter. Picking up the phone here at the Smithsonian, I set out to find out more about Pi and how it is represented in the national ...

Time is a flat circle, Matthew McConaughey tells us, neglecting to explain how then we could measure time's circumference to derive its diameter, using pi. (Maybe it's best not to take the ...

The waist circumference was measured in standing subjects as the minimum abdominal circumference between the xyphoid process and the umbilicus.

A manufacturer of inspection equipment has applied a high speed, non-contact laser micrometer to measure the circumference, diameter and ovality of cylindrical objects, including cigarettes, filters ...