3.4, 3.6-3.7 · Length, midpoint, parallel and perpendicular linesLesson 1 of 11Free preview
The length of a line segment
Two points make a right-angled triangle, so Pythagoras gives the length between them.
3.4, 3.6-3.7 · Length, midpoint, parallel and perpendicular linesLesson 1 of 11Free preview
Two points make a right-angled triangle, so Pythagoras gives the length between them.