Definition:Right Angle/Perpendicular/Foot
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Definition
The foot of a perpendicular is the point where it intersects the line to which it is at right angles.
In the above diagram, the point $C$ is the foot of the perpendicular $CD$.
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): foot: 2.
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): foot: 2.