The length of a line segment Pythagoras' theorem can be used to calculate the distance between two points. The line between points X and Y is a line segment.

Finding π The Greeks also found that, by creating a diameter line segment out of string and wrapping it around the curved line edge of the circle, the circumference (or length around the circle) was ...

GCSE Eduqas Pythagoras' theorem - Eduqas The length of a line segment Pythagoras’ theorem can be used to calculate the length of any side in a right-angled triangle.