A scalene triangle has 0 lines of symmetry. An isosceles triangle has only 1 line of symmetry. An equilateral triangle has a maximum number of reflection symmetry equal to 3. Hence, it has three line of symmetry. To learn more about reflection-symmetry, click here!
Lines of Symmetry Worksheet
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GraphicMaths - Line symmetry
Solved 22. How many lines of symmetry does this isosceles
How many lines of symmetry does a scalene triangle have
What are the lines of symmetry in triangles? - Quora
Find the number of lines of symmetry for each of the following shapes
GraphicMaths - Line symmetry
SOLVED: How many lines of symmetry does each of the triangles