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 ? (83 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. (104 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? (41 votes) Hecretary Bird 6 years agoPosted 6 years ago. Direct link to Hecretary Bird's post “A icositetragonAn icosog...” A icositetragon (64 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? (22 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! (52 votes) bh4troy 8 years agoPosted 8 years ago. Direct link to bh4troy's post “What's a polygon” What's a polygon (23 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 (15 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? (22 votes) Lewis 6 years agoPosted 6 years ago. Direct link to Lewis's post “9--Nonagon 10--Decagon1...” 9--Nonagon (35 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? (21 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. (30 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. (21 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. (29 votes) Rosie YANG 6 years agoPosted 6 years ago. Direct link to Rosie YANG's post “Who invented the word pol...” Who invented the word polygon? (17 votes) davebetts 6 years agoPosted 6 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: (29 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 (16 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. (23 votes) ejandersen 9 months agoPosted 9 months ago. Direct link to ejandersen's post “whats a obtuse again” whats a obtuse again (16 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)
See Also
Polygons review (article) | Khan AcademySOLVED: Which statements are true about polygons?
Angle Measures of Polygons Pre-Test Active
Which statements are true about polygons? Check all that apply.
All sides and all angles in a polygon are congruent.
The sides of a polygon are segments that SOLVED: Which statements are true about the regular polygon?
Select three options.
The sum of the measures of the interior angles is 900^∘.
Each interior angle measures 108^∘.
All of the angles are conghtent.
The polygon is a regular hexagon.
The sum of tProperties of shapes | Lesson (article) | Khan Academy