Pole of a line

Marks the pole of a line for a circle. Ruler and compass only.

All parts

Part 1 of 6: Foot of the perpendicular from O (1 of 2)Step 1 of 7Compass

f misses c1. Start from the point of f nearest the centre. Put the point of your compass on O.

Keys: left and right arrows step, Space plays or pauses, Escape goes back to all constructions.