It works out as having 5150 diagonals
Shapes having less than 4 sides or more than 4 sides are not parallelograms
It depends on the type of parallelogram:The classic generic-looking parallelogram, having no right angles, and having adjacent sides of unequal length, has no lines of symmetry (only point symmetry about the point of intersection of the diagonals).Special types of parallelograms are as follows:A square has 4 lines of symmetry: horizontal, vertical, and one containing each diagonal.A non-square rhombus has two lines of symmetry: one containing each diagonal.A non-square rectangle has two lines of symmetry: horizontal and vertical.
A tetra-decagon is a 14 sided polygon having 77 diagonals
9 sides because a nonagon has 27 diagonals
No adjacent means having a common endpoint or border.
Quadrilateral can certainly be parallelograms, but they can also be squares, rectangles, and other 4-sided shapes.All parallelograms are quadrilaterals but not all quadrilaterals are parallelograms.
A quadrilateral having both pairs of opposite sides parallel to each other.
All sides of a rhombus are the same length. Of the other parallelograms, only the square has identical side lengths (it differs from a rhombus by having four right angles).
A square is defined by having 90 degree measures on each of its four angles, with all four sides congruent.Aparallelogramcan be a square, but not all parallelograms are squares.However, ALL squares are parallelograms.
A square is defined by having 90 degree measures on each of its four angles, with all four sides congruent.Aparallelogramcan be a square, but not all parallelograms are squares.However, ALL squares are parallelograms.
A rectangle.