Q: What type of triangle has only 1 line of symmetry?

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A scalene triangle. Though it's usually defined as having three sides of different lengths, this is an equivalent definition: all equilateral triangles have three lines of symmetry, and all isosceles triangles have one (no triangle has two lines of symmetry).

Equilateral Triangle.

They have a bilateral symmetry that means that there is only one way you can cut them to get 2 equal shapes.

Most animals have bilateral symmetry. Bilateral symmetry means that if you draw a line from head to tail right down the middle of the body, you would have two halves the same but mirror images.

Related questions

An isosceles triangle

An equilateral triangle and an isoceles triangle have one line of symmetry.

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.

That depends 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 and any other triangles have no lines of symmetry.

depends on what type of triangle

A scalene 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 and other triangles have no lines of symmetry.

Vertical.

A line of symmetry for a triangle is a line along which a triangle can be folded so that either side of the line is a mirror image shape of the other.An Isosceles triangle, with two equal sides, has a line of symmetry from the center of the base to its opposing vertex.An equilateral triangle with three equal sides has three lines of symmetry, each from the center of a side to its opposing vertex.Any other triangle type, called a scalene triangle, has no lines of symmetry,

An equilateral triangle has three lines of symmetry. Pick a corner, and draw a line from there to the center of the opposite side of the triangle. That is one of the lines of symmetry. You can get the other two lines by doing this to the other two corners. An isosceles triangle only has one line of symmetry and a scalene triangle has none.

An isosceles triangle has two equal sides and one line of symmetry

A heart. Triangles can have more than one depending on the type.