An isoceles triangle does not have rotational symmetry.
Chat with our AI personalities
An equilateral triangle has rotational symmetry (order 3).
No.
Any triangle that is not isosceles or equilateral. An equilateral triangle has 3 lines of symmetry, while an isosceles triangle has only one, and any other triangle (non-isosceles right triangle, or scalene triangle) has zero.
It depends on what kind of triangle. A scalene triangle (no equal sides or angles) would not have any lines of symmetry. An isosceles triangle would have 1 line of symmetry, and an equilateral triangle would have 3 lines of symmetry.
Most triangles don't have any lines of symmetry. An isosceles triangle has one. An equilateral triangle has three.