A 3-sided pyramid.
A 4 sided quadrilateral has 2 diagonals.
No. A hexagon is a 6-sided figure. A parallelogram is a specific kind of 4-sided figure.
Yes, a 4 sided polygon.
There are several: a tetrahedron with 4 equilateral triangles. An 8-sided solid (think of 2 Egyptian pyramids, turn one upside down and put the two square bases together). A 20-sided also has equilateral triangles.
In 2 dimensions, a regular 5 sided figure is a pentagon. In 3 dimensions, there is no regular sided 5 sided figure. The tetrahedron is a regular 4 sided figure and a cube is a regular 6 sided figure.
A 3-sided pyramid.
A 4 sided quadrilateral has 2 diagonals.
No. A hexagon is a 6-sided figure. A parallelogram is a specific kind of 4-sided figure.
Yes, a 4 sided polygon.
a 4 sided figure * * * * * A four sided figure need no be a parallelogram. Think of a kite!
No because an heptagon is a 7 sided figure whereas a trapezoid is a 4 sided figure.
a quadrilateral
A quadrilateral.
It is any 4 sided figure.
quadrilateral
rectangle trapozoid