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It depends on the type of triangle:
-- scalene triangles have three sides of different length, and no lines of symmetry
-- isoceles triangles have one line of symmetry that includes the apex
-- equilateral triangles have three lines of symmetry, all bisectors through a vertex
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Does a triangle have a line symmetry rotational symmetry or both?
An equilateral triangle has both line symmetry and rotational symmetry. A non-equilateral isosceles triangle has line symmetry but not rotational symmetry. A scalene triangle has neither kind of symmetry.
What type of triangle has 1 line of symmetry?
An equilateral triangle and an isoceles triangle have one line of symmetry.
Does a triangle have more than one line of symmetry?
It will have 3 lines of symmetry if its an equilateral triangle and only 1 line of symmetry if its an isosceles triangle.
A triangle with one line of symmetry?
An isosceles triangle
One line symmetry?
An isosceles triangle for example has only one line of symmetry
