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A regular polygon triangle is an equilateral triangle. It has three lines of symmetry: a line passing through each vertex and the mid-point of the opposite side. These are the three medians or altitudes or perpendicular bisectors or angle bisectors of the triangle - they are all the same lines.

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Q: What are the lines of symmetry on a regular polygon triangle?
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Related questions

Which polygon has less then 4 lines of symmetry?

A triangle has 3 lines of symmetry.


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