Quick Answer: Which Is A Regular Polygon?

What is the formula for a polygon?

Let’s recap.

A regular polygon is a flat shape whose sides are all equal and whose angles are all equal.

The formula for finding the sum of the measure of the interior angles is (n – 2) * 180.

To find the measure of one interior angle, we take that formula and divide by the number of sides n: (n – 2) * 180 / n..

What is an L shape called?

palordrolap. 6 points · 1 year ago. Yes, it’s a hexagon, specifically a non-convex hexagon on account of having a concave angle. There’s no specific official name that I’m aware of. “L-shaped hexagon” might actually be sufficient.

Why a rectangle is not a regular polygon?

A regular polygon must be both equilateral (all sides are the same length) and equiangular (all angles of the same measure). A rectangle is equiangular. All of its sides equal 90˚ by definition. … All of its sides can never be the same length and so, it can never be regular.

How many sides does a regular polygon?

Names of Regular PolygonsRegular PolygonNumber of SidesExterior AnglesEquilateral triangle3 sides3 exterior angles of 120°Square4 sides4 exterior angles of 90°Regular pentagon5 sides5 exterior angles of 72°Regular hexagon6 sides6 exterior angles of 60°2 more rows

What is the name of a 5 sided shape?

pentagonMore than Four Sides A five-sided shape is called a pentagon. A six-sided shape is a hexagon, a seven-sided shape a heptagon, while an octagon has eight sides…

What is a polygon and a regular polygon?

A 2-dimensional enclosed figure made by joining 3 or more straight lines is called a polygon. Polygons are also known as ‘flat figures’. Polygon Not a Polygon Not a Polygon. (straight sides) (has a curve) (open, not closed) A polygon having equal sides and equal angles is a regular polygon.

Is a rhombus a regular polygon?

A regular polygon must be equilateral (all of its sides are the same length) and equiangular (all of its angles are the same measure). A rhombus is equilateral: all of its sides are of the same length. … A rhombus can never be a regular polygon because it is not equiangular.

Is rectangle a regular polygon?

A regular polygon is a polygon where all of the sides and angles are the same. Therefore, a square is a regular polygon with four sides and a rectangle is not. … It has all the same sides and the same angles. An isosceles triangle has two equal sides and two equal angles.

Is a hexagon a regular polygon?

A hexagon is an example of a polygon, or a shape with many sides. … ‘ A regular hexagon has six sides that are all congruent, or equal in measurement. A regular hexagon is convex, meaning that the points of the hexagon all point outward. All of the angles of a regular hexagon are congruent and measure 120 degrees.

Is a trapezoid a regular polygon?

A trapezoid has one pair of parallel sides. A regular polygon has congruent sides and angles. A pentagon can not be an irregular polygon.

What is not a regular polygon?

An irregular polygon is any polygon that is not a regular polygon. … It can have sides of any length and each interior angle can be any measure. They can be convex or concave, but all concave polygons are irregular since the interior angles cannot all be the same.

What does a polygon look like?

A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons. … The orange shape is still a polygon even if it looks like it has an arrow. All the sides are straight, and they all connect.

What is the formula for interior angles?

An interior angle is located within the boundary of a polygon. The sum of all of the interior angles can be found using the formula S = (n – 2)*180. It is also possible to calculate the measure of each angle if the polygon is regular by dividing the sum by the number of sides.