Log in abdan syakuran 6 years agoPosted 6 years ago. Direct link to abdan syakuran's post “I have learned about Geom...” I have learned about Geometry basic here, then I want to curious how many polygons or shape in the world at all ? only till to 8 (Octagon) or is there more polygons ? (96 votes) grayson.lee 6 years agoPosted 6 years ago. Direct link to grayson.lee's post “There are many more! 9 si...” There are many more! 9 sides? Nonagon, 10 sides? Decagon. And so on and so on until there are so many sides you could hardly tell the difference between them and circles. (119 votes) ULTIMATEGUYZ 6 years agoPosted 6 years ago. Direct link to ULTIMATEGUYZ's post “What is a 24-sided shape ...” What is a 24-sided shape called? (50 votes) Hecretary Bird 6 years agoPosted 6 years ago. Direct link to Hecretary Bird's post “A icositetragonAn icosog...” A icositetragon (74 votes) Faaty 6 years agoPosted 6 years ago. Direct link to Faaty's post “What is the difference be...” What is the difference between a circle, an ellipse, and an oval? (25 votes) GoPro47😃 6 years agoPosted 6 years ago. Direct link to GoPro47😃's post “The difference is; with a...” The difference is; with a circle the diameter IS THE SAME all the way around, but with a ellipse the diameter CAN CHANGE as you go around, so a circle is a ellipse but an ellipse is not always a circle. Hope this helps! (56 votes) bh4troy 8 years agoPosted 8 years ago. Direct link to bh4troy's post “What's a polygon” What's a polygon (28 votes) Zelong Huang 3 years agoPosted 3 years ago. Direct link to Zelong Huang's post “1）A polygon is a shape th...” 1）A polygon is a shape that has STRAIGHT sides. According to 3 and 4, a circle does not count (20 votes) Khalid 6 years agoPosted 6 years ago. Direct link to Khalid's post “What are the names for th...” What are the names for the polygons above octagon? (27 votes) Lewis 6 years agoPosted 6 years ago. Direct link to Lewis's post “9--Nonagon 10--Decagon1...” 9--Nonagon (41 votes) Lavanya Mohanram a year agoPosted a year ago. Direct link to Lavanya Mohanram's post “Are quadrilaterals always...” Are quadrilaterals always four sided shapes? (24 votes) blanton.eidur a year agoPosted a year ago. Direct link to blanton.eidur's post “Yes they are always four ...” Yes they are always four sided. (35 votes) bbiekert 7 years agoPosted 7 years ago. Direct link to bbiekert's post “why does every shape have...” why does every shape have gon at the end, like hexagon or a pentagon ect. (23 votes) Veronica Viticella 7 years agoPosted 7 years ago. Direct link to Veronica Viticella's post “-Gon is a suffix for a sh...” -Gon is a suffix for a shape that has a specific number of angles. (33 votes) Rosie YANG 7 years agoPosted 7 years ago. Direct link to Rosie YANG's post “Who invented the word pol...” Who invented the word polygon? (19 votes) davebetts 7 years agoPosted 7 years ago. Direct link to davebetts's post “The Greeks invented the w...” The Greeks invented the word "polygon" probably used by the Greeks well before Euclid wrote one of the primary books on geometry around 300 B.C. "polygon" has been used in English since around 1560 The word comes from two parts: (32 votes) Da'Laya 5 years agoPosted 5 years ago. Direct link to Da'Laya's post “Why is squares rectangles...” Why is squares rectangles,but rectangles is not squares?Explain (18 votes) Jerry Nilsson 5 years agoPosted 5 years ago. Direct link to Jerry Nilsson's post “A rectangle has four side...” A rectangle has four sides and four right angles, which can also be said about squares. However, a square has four equal sides, which can not be said about all rectangles. (25 votes) Esther a year agoPosted a year ago. Direct link to Esther's post “So, is a five-sided shape...” So, is a five-sided shape a quadrilateral? (1 vote) Rishi a year agoPosted a year ago. Direct link to Rishi's post “No, 4 sided shapes are qu...” No, 4 sided shapes are quadrilaterals (34 votes)Want to join the conversation?
An icosogon is 20 sides, and tetra means 4.
Put them together and you get 24
2）They MUST have sides that are closed.
3）They also NEED to have at least three sides.
4）They have the same number of sides and angles.
10--Decagon
11--Hendecagon
12--Dodecagon
"poly-" = many
"-gon" = angle (or knee)
5 sided shape is a pentagon
FAQs
What grade level is polygons? ›
Students first learn about polygons as part of their work in geometry in 2nd and 3rd grade.
What are the quadrilaterals and polygons? ›Polygons are closed shapes that have only straight lines, and polygons that have four sides and four angles are called quadrilaterals. There are six different types of quadrilaterals: parallelogram, rectangle, rhombus, square, kite, and trapezoid.
What is the formula for the interior angles of a polygon? ›The formula for calculating the size of an interior angle is: interior angle of a polygon = sum of interior angles ÷ number of sides. The sum of exterior angles of a polygon is 360°. The formula for calculating the size of an exterior angle is: exterior angle of a polygon = 360 ÷ number of sides.
What is n = 2 180 n used for? ›The interior angles in a regular polygon are always equal to each other. Therefore, to find the sum of the interior angles of a polygon, we use the formula: Sum of interior angles = (n − 2) × 180° where 'n' = the number of sides of a polygon.
Is geometry a higher level than Algebra 1? ›Let's begin with the “why” question. Geometry is simpler than algebra 2. So if you want to look at these three courses in order of difficulty, it would be algebra 1, geometry, then algebra 2. Geometry does not use any math more complicated than the concepts learned in algebra 1.
What grade level math is geometry? ›| Eighth grade: | Eighth grade Math |
|---|---|
| Freshman Year: | Algebra 1-2 |
| 10th Year: | Geometry or Honors Geometry |
| 11th Year: | Algebra 3-4 or Honors Algebra 3-4 |
| 12th Year: | Pre-Calculus or Honors Pre-Calculus |
In Greek, the term 'Tetragon' is used for the square. And not only for the geometrical square, but also for the algebraic: For x-square, for example, you say in Greek χ-τετράγωνο. So, to avoid confusion, the latin word 'quadrilateral', meaning a four-sided shape, was used.
What is a 5 sided polygon called? ›A pentagon is a polygon with 5 sides and 5 angles.
Is a triangle a polygon? ›A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons. The name tells you how many sides the shape has. For example, a triangle has three sides, and a quadrilateral has four sides.
How many sides does a regular polygon have? ›A polygon interior's angle usually measures 165 degrees that will have 24 sides. The calculation for the same is provided below. Hence, the exterior grade of regular polygons will be summed at 360 degrees. Thus, the sum of the number of the sides will be calculated as =360\15 = 24.
What is the sum of all the angles of a polygon? ›
To find the interior angle sum of a polygon, we can use a formula: interior angle sum = (n - 2) x 180°, where n is the number of sides.
How many angles does a polygon have? ›The interior angles of a polygon are equal to a number of sides. Angles are generally measured using degrees or radians. So, if a polygon has 4 sides, then it has four angles as well.
What is the maximum exterior angle possible for a regular polygon? ›(b) What is the maximum exterior angle possible for a regular polygon? (b) We know that the exterior angle and an interior angle will always form a linear pair. Thus, the exterior angle will be maximum when the interior angle is minimum. Therefore, the maximum exterior angle possible for a regular polygon is 120°.
What are polygons Grade 4? ›A polygon is a two-dimensional geometric figure that has a finite number of sides. The sides of a polygon are made of straight line segments connected to each other end to end. Thus, the line segments of a polygon are called sides or edges.
What are polygons Grade 5? ›1）A polygon is a shape that has STRAIGHT sides. 2）They MUST have sides that are closed. 3）They also NEED to have at least three sides. 4）They have the same number of sides and angles.
What is a polygon Grade 6? ›The word polygon comes from the Greek poly - meaning many and gonos - meaning angles. So a polygon is a many angled figure. With many angles comes many sides, in fact every 2D straight sided shape has the same number of angles as sides.
What are polygons grade 3? ›In geometry, a polygon can be defined as a flat or plane, two-dimensional closed shape bounded with straight sides. It does not have curved sides.