There are three equal sides in an equilateral triangle.
Only if its in the form of an equilateral triangle or a isosceles triangle will it have lines of symmetry.
The interior angles of any triangle (not traingle) always sum to 180 degrees. Whether or not it is equilateral (not eguilateral) is irrelevant.
Only when its an equilateral triangle then it is a regular polygon
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It is called an equilateral triangle.
Equilateral Triangle - if that is what you mean
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An equilateral triangle
An equilateral triangle has 3 lines of symmetry.
An equilateral triangle has 3 lines of symmetry
there r 3 lines of symmetry in a equilateral triangle
Different triangles may have none, one, or three lines of symmetry.