A quadrilateral has 4 sides whereas a polygon has many sides which includes a quadrilateral
36
40 lines.40 lines.40 lines.40 lines.
The number of triangles formed by the diagonals of a 21 sided polygon is C(21,3) = 21x20x19/3x2x1 = 1,330.
A closed geometric figure could be called a polylateral - but that is a very obscure word - or simply a polygon. Generally such a figure is referred to in terms of how many lines it is composed of: 3 = triangle 4= quadrilateral 5 = pentagon, etc.
Many. Poly means many and a polygon is a plane figure bounded by three or more straight lines. The precise number is NOT specified. Since the number of angles in a polygon equals the number of lines, the number of angles is also unspecified.
A polygon is a generic term describing a closed plane figure bounded by 3 or more straight line segments. It need not have any perpendicular lines.
A quadrilateral has 4 sides whereas a polygon has many sides which includes a quadrilateral
4
This varies according to the polygon. A polygon is any 2D closed shape with three or more straight sides. Therefore, a polygon such as a square will have four lines of symmetry, but an irregular hexagon may have several or none. Even a triangle can have between zero and three lines of symmetry, depending on the type of triangle it is.
A polygon can have any number of three or more sides. It is a generic name for a many-sided figure, and does not specify a particular number of sides. A polygon is a shape constructed with straight lines and no gaps between each side.
It depends on what type of polygon.
Zero. A null angle is formed by two straight lines that coincide.
How many lines of symmetry does the 15 side polygon have
Four opposite equal angles are formed when 2 lines intersect each other
only 1 lines can contain 3 collinear points. Maybe you mean coplanar?
It has 16 lines.