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The definition of the word "scalene" is a triangle having three sides of different lengths.
The mathematical definition of "symmetry" is an exact reflection of form on opposite sides of a dividing line/plane.
Therefore, by definition, no lines of symmetry exist in a scalene triangle.
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Does a scalene triangle have any lines of symmetry?
No
How many lines of rotational symmetry in a scalene triangle?
None.
What is a triangle that has no lines of 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.
How many axes of symmetry does th triangle?
That will depend on what type of triangle it is because an equilateral triangle has 3 lines of symmetry whereas an isosceles triangle has only 1 line of symmetry but a scalene triangle has no lines of symmetry.
How many lines of symmetry are in a triangle?
The number of lines of symmetry of a triangle depends upon the kind of triangle it is:A scalene triangle with no side lengths equal has no lines of symmetry;An isosceles triangle with two sides equal has 1 line of symmetry that bisects the angle between the two equal sides;An equilateral triangle with all three sides equal has three lines of symmetry - the three lines are the bisectors of the three angles.A right triangle is a triangle where one angle is 90°. A right triangle is either a scalene triangle with no lines of symmetry or an isosceles triangle (where the legs are of equal length) with one line of symmetry which bisects the 90° angle.No triangle can have exactly 2 lines of symmetry.
