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The number of lines of symmetry of a triangle depends on what triangle you are talking about. An equilateral triangle has three lines of symmetry (one corresponding to each altitude). An isosceles triangle (that is not equilateral) has one line of symmetry. Other triangles have none.

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โˆ™ 2009-06-21 01:43:44
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Q: How many symmetric line has the triangle?
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