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A straight ed...

Question

A straight edge has no _________ .

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Solution

Use of straightedge:
Edge: An edge is a line segment between faces.
The straightedge is finitely long, but it has no markings on it and has only one straight edge. It can only be used to draw a line segment between two points, with infinite precision to those points, or to extend an existing segment.
Hence, a straight edge has no measurement marks.

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