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Only equilateral triangles and some irregular polygons of (3n) sides have 3 lines of symmetry.
A regular polygon with n sides (or vertices) has n lines of symmetry. If n is even, there are n/2 lines of symmetry from vertex to opposite vertex and another n/2 from the middle of a side to the middle of the opposite side. If n is odd, there are n lines of symmetry from vertex to the midpoint of the opposite side.
What else can I help you with?
Shapes which have 3 lines of symmetry?
Equilateral triangle.
Do all shapes have lines of symmetry?
not all shapes have lines of symmetry. one example is a triangle.
Shapes with same symmetry as the equilateral triangle?
How many lines of symmetry does an equilateral triangle have?
Does all shapes have line of symmetry?
No. Asymmetric shapes do not have any lines (or planes) of symmetry.
3 shapes with no lines of symmetry?
A scalene triangle, A trapezoid, an irregular pentagon.
Do irregular shapes have lines of symmetry?
no
What 4 sided shapes have 4 lines of symmetry?
A square has four lines of symmetry.
What shapes have two lines of symmetry?
Ellipses and non-square rectangles have two lines of symmetry.
What shapes has four line of symmetry?
A square has 4 lines of symmetry
What shapes have lines of symmetry?
trianglessquaresrectanglesgeneral starsoctagonshexagonspentagons
What is the symmetry of sphere?
Three dimensional shapes, generally, don't have lines of symmetry, but a circle has an infinite number is symmetry lines. 3D shapes also don't have rotational symmetry either, but a circle has an infinite number of that as well.
Why are there no lines of symmetry on a parrallelogram?
Most shapes do not have lines of symmetry so why should it come as a surprise that a parallelogram has none?
