A shape that begins with the letter "S" and has one line of symmetry is a "star." Specifically, a five-pointed star has one line of symmetry that can be drawn through its center, dividing it into two mirror-image halves. This line bisects the star from one point to the opposite point.
semicircles
A symmetrical shape is said to have line symmetry. A shape that has line symmetry can have one or more lines of symmetry
An isosceles triangle has one line of symmetry
triangle
a triangle only has one line of symmetry
a shape with a line of symmetry
square
semicircles
A symmetrical shape is said to have line symmetry. A shape that has line symmetry can have one or more lines of symmetry
square, septagon (heptagon)!
The 2D shape which has one line of symmetry is the trapezium.
An isosceles triangle has one line of symmetry
An isosceles triangle has one line of symmetry
How about an isosceles triangle which has one line of symmetry
square
a leaf
An isosceles triangle and a kite have only one line of symmetry.