A square
a Square.
An isosceles triangle
Every right circular cone, conic section, and regular polygon has at least one line of symmetry.
Every right circular cone, conic section, and regular polygon has at least one line of symmetry.
The shape you're looking for is "seesaw." It has 11 letters, possesses at least one line of symmetry, and starts with the letter "s." A seesaw can be symmetrical along its central axis.
a Square.
Square
a shape with a line of symmetry
septahedron
The 2D shape which has one line of symmetry is the trapezium.
An isosceles triangle has one line of symmetry
Not necessarily.
no
square
How about an isosceles triangle which has one line of symmetry
the shape is a heart.
An isosceles triangle and a kite have only one line of symmetry.