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**Sided Shapes**

www.reference.com/math/**nine-sided-shape-called**-680afddabbcb**9**b5c

What Is a Nine-Sided Shape Called? A nonagon is a closed shape that has nine sides. If it is a regular nonagon, all nine sides are the same length, and all the angles are equal. The sum of the interior angles of a nonagon is 1260 degrees. If it is a regular nonagon, then all nine angles have the same measurement of 140 degrees.

**en.wikipedia.org**/wiki/**Nonagon**

In geometry, a nonagon (/ ˈ n ɒ n ə ɡ ɒ n /) or enneagon (/ ˈ ɛ n i ə ɡ ɒ n /) is a nine-sided polygon or 9-gon. The name nonagon is a prefix hybrid formation, from Latin (nonus, "ninth" + gonon), used equivalently, attested already in the 16th century in French nonogone and in English from the 17th century.

**www.mathsisfun.com**/**shape**.html

2D Shapes. Regular Polygons. A polygon is a plane (2D) shape with straight sides. To be a regular polygon all the sides and angles must be the same:

mathcentral.uregina.ca/QQ/database/QQ.09.96/rosa1.html

After about 6 sides mathematicians usually refer to these polygons as n-gons. So your 13 sided polygon I would call a 13-gon. Cheers, Walter and Harley Go to Math Central. To return to the previous page use your browser's back button.

**en.wikipedia.org**/wiki/**Polygon**

The segments of a polygonal circuit are called its edges or sides, and the points where two edges meet are the polygon's vertices (singular: vertex) or corners. The interior of a solid polygon is sometimes called its body. An n-gon is a polygon with n sides; for example, a triangle is a 3-gon. A simple polygon is one which does not intersect ...

uk.answers.yahoo.com/question/index?qid=20070512042623AALrsQO

I need to know what different shapes are called, and if possible, what is the area of each one if the perimeter is 1000m. I have done a hexagon and pentogon, but after that it gets a bit more confusing and i didn't know the names of any more. Thankyou very much

www.answers.com/Q/What_is_nine-**sided**_**shape**_called

A 9 sided polygon is a nonagon. It is called a nonagon and/or an enneagon. They belong to the greater family of polygons. A nine-sided shape is called a nonagon.

**www.math.com**/tables/geometry/**polygon**s.ht

Polygon Formulas (N = # of sides and S = length from center to a corner) Area of a regular polygon = (1/2) N sin(360°/N) S 2. Sum of the interior angles of a polygon = (N - 2) x 180°. The number of diagonals in a polygon = 1/2 N(N-3) The number of triangles (when you draw all the diagonals from one vertex) in a polygon = (N - 2). Polygon Parts

**www.mathsisfun.com**/geometry/**polygons**

Polygons A polygon is a plane shape with straight sides. Is it a Polygon? Polygons are 2-dimensional shapes. They are made of straight lines, and the shape is "closed" (all the lines connect up).

tutorhub.com/question/what-is-**a-9-sided-shape-called**

What is a 9 sided shape called? studentquestionsdirect in Maths over 7 years ago. Welcome to our free-to-use Q&A hub, where students post questions and get help from other students and tutors. Follow the trail of responses and if you have anything to add please sign up or sign in.