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What is the root word of nonagon?
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.
What is a 9 sided object called?
nonagon
A nine sided shape is a polygon called a nonagon. It has nine straight sides that meet at nine corners. The word nonagon comes from the Latin word “nona”, meaning nine, and “gon”, meaning sides. So it literally means “nine sided shape”.
How many planes does nonagon have?
9
A nonagon is a nine-sided polygon. You may recall that a polygon is a many-sided shape….Definition of a Nonagon.
| Name | Number of Sides |
|---|---|
| hexagon | 6 |
| heptagon | 7 |
| octagon | 8 |
| nonagon | 9 |
What is the significance of a nonagon?
A nonagon is also called enneagon, which is derived from a Greek word called enneagonon, which means nine corners. The first use of the word nonagon dates back to the early 17th century, and has a Latin prefix (nona) and a Greek suffix (gon), making it a polygon with nine sides and nine angles.
What part of speech is nonagon?
A polygon with nine sides and nine angles.
How does a heptagon look like?
The heptagon shape is a plane or two-dimensional shape comprised of seven straight sides, seven interior angles, and seven vertices. A heptagon shape can be regular, irregular, concave, or convex. All heptagons can be divided into five triangles. All heptagons have 14 diagonals (line segments connecting vertices)
What is an irregular nonagon?
Irregular nonagon A nonagon in which all sides are not equal and all angles are not equal. The measure of its angles are different but total sum of all its interior angles is always 1260°.
Is a nonagon concave or convex?
No line containing any of the sides will pass through the interior of the quadrilateral, so it is convex. Example 1a: There are 9 sides, so this is a nonagon. A line containing some of the sides will pass through the interior of the nonagon, so it is concave.
Where does the name nonagon come from In geometry?
In geometry, a nonagon ( / ˈnɒnəɡɒn /) or enneagon ( / ˈɛniəɡɒn /) 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.
What are the sides of the nonagon abcdefghi?
Nonagon = Nona + gon where Nona means nine and gon means sides. The given nonagon ABCDEFGHI has sides AB, BC, CD, DE, EF, FG, GH, HI, and IA and angles ∠A, ∠B, ∠C, ∠D, ∠E, ∠F, ∠G, ∠H, and ∠I. The blue line segments AC and BD are its diagonals.
Are there more than 9 sides to a nonagon?
A nonagon consists of 9 angles. The sum of angles of a nonagon is 1260°. A nonagon has 9 exterior angles. The sum of angles of the exterior angles of a nonagon is 360°. The following shapes are not nonagons. Let us see why? There are more than 9 sides in this figure.
How to calculate the area of a regular nonagon?
Regular nonagon. A regular nonagon is represented by Schläfli symbol {9} and has internal angles of 140°. The area of a regular nonagon of side length a is given by. R = ( a / 2 ) 2 + r 2 = r sec ( π / 9 ) . {\\displaystyle R= {\\sqrt { (a/2)^ {2}+r^ {2}}}=r\\sec (\\pi /9).}