# Coxeter - Figure 1.6 D (left)

A, B, C, D are any four collinear points. R is a point outside the line and T, Q, W are the sections by an arbitrary line through D. Z is the intersection of AQ and RC.

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A, B, C, D are any four collinear points. R is a point outside the line and T, Q, W are the sections by an arbitrary line through D. Z is the intersection of AQ and RC.

Download our apps here: