Names of Regular Polygons

Regular Polygon Number of Sides Exterior Angles
Equilateral triangle 3 sides 3 exterior angles of 120°
Square 4 sides 4 exterior angles of 90°
Regular pentagon 5 sides 5 exterior angles of 72°
Regular hexagon
6 sides
6 exterior angles of 60°


20 mars 2019

Similarly, Which is a regular polygon?

A polygon is called regular if it has equal sides and angles. Thus, a regular triangle is an equilateral triangle, and a regular quadrilateral is a square.

Additionally, What polygon has 4 sides? Definition: A quadrilateral is a polygon with 4 sides. A diagonal of a quadrilat- eral is a line segment whose end-points are opposite vertices of the quadrilateral.

What type of polygon has 12 sides?

A dodecagon is a 12-sided polygon. Several special types of dodecagons are illustrated above. In particular, a dodecagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular dodecagon.

What polygon has 9 sides?

List of n-gons by Greek numerical prefixes

Sides Names
7 heptagon septagon
8 octagon
9
enneagon

nonagon
10 decagon

What is example of regular polygon?

A regular polygon is a polygon with congruent sides and equal angles. The examples of regular polygons include equilateral triangle, square, regular pentagon, and so on.

What is a regular polygon give example?

A polygon having all the sides equal are all regular polygons. Since all the sides of the polygon are equal therefore all the angles of a regular polygon are equal. The most common examples of regular polygons are square, rhombus, equilateral triangle etc.

What is a regular polygon sides?

A regular polygon is an. -sided polygon in which the sides are all the same length and are symmetrically placed about a common center (i.e., the polygon is both equiangular and equilateral). Only certain regular polygons are “constructible” using the classical Greek tools of the compass and straightedge.

What polygon has 4 sides 4 angles?

A quadrilateral is a polygon that has exactly four sides. (This also means that a quadrilateral has exactly four vertices, and exactly four angles.)

Is rhombus a polygon?

Parallelogram and Rhombus are four-sided polygons also known as quadrilaterals having four sides and four angles.

What shape has 4 sides 4 angles?

A trapezoid is a quadrilateral with one set of parallel sides. It has 4 sides and 4 angles. A square is a four sided shape with 4 right angles. It’s opposite sides are parallel (2 sets) and all 4 sides are equal length.

What are the angles of a 12 sided polygon?

Dodecagon is a 12-sided polygon with 12 angles and 12 vertices. The sum of the interior angles of a dodecagon is 1800°.

What is a 1000000000000000 sided shape called?

Chiliagon


Regular chiliagon
A regular chiliagon
Type Regular polygon
Edges and vertices 1000
Schläfli symbol {1000}, t{500}, tt{250}, ttt{125}

What is the sum of a 9 sided polygon?

The General Rule

Shape Sides Sum of Interior Angles
Octagon 8 1080°
Nonagon
9

1260°
..
Any Polygon n (n−2) × 180°

What is the angle of a 9 sided polygon?

To find the value of an internal angle within this polygon, we can just multiply the number of triangles by 180 ° , then divide by the number of internal angles, which is nine. Excellent! So the interior angle of a 9 -sided polygon is 140 ° .

What are regular shapes examples?

Examples of Regular Shapes

Shape Name Properties
Regular pentagon 5 equal sides; 5 equal angles
Regular hexagon 6 equal sides; 6 equal angles
Regular heptagon 7 equal sides; 7 equal angles
Regular octagon 8 equal sides; 8 equal angles

What is an irregular polygon example?

A scalene triangle is a triangle in which all the three sides are in different lengths, and all the three angles are of various measures. So it is an irregular polygon. Square is a regular quadrilateral, which has all the four sides of equal length and all four angles are also equal. … So it is an irregular polygon.

What is a regular polygon class?

Regular polygon: A polygon having sides of equal length and angles of equal measures is called a regular polygon. i.e., A regular polygon is both equilateral and equiangular. (i) A regular polygon of 3 sides is called an equilateral triangle. (ii) A regular polygon of 4 sides is called a square.

What is a regular polygon for Class 8?

A regular polygon is a polygon that is equiangular i.e. All the angles are equal in measure and equilateral i.e. all sides have the same length. We know that the equilateral triangle is a regular triangle whose internal angle is 60∘ and its sides are also the same (equal length).

What is a polygon and 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.

What is a polygon example?

Triangles, hexagons, pentagons, and quadrilaterals are all examples of polygons. The name gives an indication of how many sides the shape has. For example, a triangle consists of three sides while a quadrilateral consists of four sides.

How do you find the sides of a regular polygon?

Subtract the interior angle from 180. For example, if the interior angle was 165, subtracting it from 180 would yield 15. Divide 360 by the difference of the angle and 180 degrees. For the example, 360 divided by 15 equals 24, which is the number of sides of the polygon.

What is a regular polygon with 4 sides?

(ii) A regular polygon of 4 sides is called a square.