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ABP
Try it on the Geometry BoardUses:Perpendicular from a point

Perpendicular line

Draws the line through a point at right angles to a line. Ruler and compass only.

Part 1 of 1: Perpendicular from P to fStep 1 of 12Compass

This draws the line from P that meets f at a right angle. Put the point of your compass on P.

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