Two of them are 0 and 8.
In some fonts, 1 (though not this font)!
1,0,8
888
Write three numbers whose sum is 10 in all horizontal vertical and diagonal?
Different triangles may have none, one, or three lines of symmetry.
It can be rotated 3 different places and can still maintain all of its characteristic when a design has three fold symmetry.
Depending on the triangle, there can be 0, 1, or three lines of symmetry. A scalene triangle (all sides of different lengths) will have no lines of symmetry, an isosceles triangle (exactly two sides of the same length) will have one line of symmetry, and an equilateral triangle (all three sides of the same length) will have three lines of symmetry.
line symmetry, rotational symmetry, mirror symmetry &liner symmetry
A triangle having each of its three sides of different lengths is a scalene triangle. That would also mean there are no lines of symmetry.
The word "symmetry" has three syllables.
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
An equilateral triangle has exactly three lines of symmetry. It is the only shape that contains exactly three lines of symmetry.
It does have rotational symmetry of order three.