Yes and it is an isosceles triangle.
Isosceles
Yes such as an isosceles triangle.
An isosceles triangle has exactly one line of symmetry, a rectangle has two. A trapezoid can have none or one.
Any isosceles triangle that is not also equilateral has exactly one line of symmetry.
An equilateral triangle and an isoceles triangle have one line of symmetry.
An isosceles triangle has exactly one line of symmetry.
An Isosceles triangle has at least one line of symmetry but if it has more than one line of symmetry it can be an Equilateral triangle as well as a Isosceles Triangle. So a triangle with one line of symmetry is always Isosceles and If it has more than one it is always an Equilateral triangle as well as an Isosceles triangle. Example of an Isosceles triangle:
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.
It will have 3 lines of symmetry if its an equilateral triangle and only 1 line of symmetry if its an isosceles triangle.
The five shapes that have one line of symmetry are equilateral triangle, isosceles triangle, scalene triangle, rectangle, and rhombus. A shape has one line of symmetry if it can be folded along a line so that the two halves match exactly. In the case of these shapes, there is only one line that can divide the shape into two congruent halves.
An isosceles triangle for example has only one line of symmetry
An isosceles triangle has only one line of symmetry