Engineering Principles V11

Clive W. Humphris

GEOMETRY: Bisecting a Line at Right Angles.  

Each of these topics shows how its possible to accurately draw lines and angles using nothing more than a straight edge and a pair of compasses.

Beginning with bisecting a line i.e. to find the centre of the line from two distant points here labelled A and B.

Note that this process finds the centre between points A and B, but also produces two lines at exactly 90° to one another.

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