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What are different kinds of polygons how to identify and how many sides and their names?
A polygon has 3 or more sides and some of the better known of them with names and sides are as follows:- Triangle has 3 sides Quadrilateral has 4 sides Pentagon has 5 sides Hexagon has 6 sides Heptagon has 7 sides Octagon has 8 sides Nonagon has 9 sides Decagon has 10 sides Undecagon has 11 sides Dodecagon has 12 sides The list can go on and on but its perfectly acceptable to call as for example a 30 sided polygon a 30-agon.
What are the polygons with 11-30 sides called?
41
Can you name all the polygons?
Not really, because there are an infinitely large number of polygons. Just keep adding another side to the last one you had and you can go on forever. There are special names for a small group of polygons, starting with one that has three sides, the triangle, and continuing on to four sides (quadrilateral), five sides (pentagon), six (hexagon), and even eight (octagon) or ten (decagon). Once you get past that group, you just name a polygon by the number of sides it has. You call it a 20-gon, or a 30-gon.With the variable n representing the number of sides. There are also Shapes called quadrilaterals which are a group of 4 sided shapes including a square, a rectangle a trapezium and many more! That is what I know and what I can tell you!
What is the equation in 12y-9 equals 21?
The equation is 12y - 9 = 21. To solve for y, you can start by adding 9 to both sides to isolate the term with y. This gives you 12y = 30. Next, divide both sides by 12 to solve for y, which gives y = 2.5.
Is 21 over 30 in its lowest terms 7 over 10?
Yes, because 3 is the only number that both can be divided by to further reduce both sides. 21/3 = 7, 30/3= 10 so, 21/30 = 7/10
What are different kinds of polygons how to identify and how many sides and their names?
A polygon has 3 or more sides and some of the better known of them with names and sides are as follows:- Triangle has 3 sides Quadrilateral has 4 sides Pentagon has 5 sides Hexagon has 6 sides Heptagon has 7 sides Octagon has 8 sides Nonagon has 9 sides Decagon has 10 sides Undecagon has 11 sides Dodecagon has 12 sides The list can go on and on but its perfectly acceptable to call as for example a 30 sided polygon a 30-agon.
Names of polygons with 21 sides to 60 sides?
You can either call them by n-gon for n sides (i.e. 21-gon) or combine a prefix and suffix (i.e. Icosikaihenagon). No. of No. of Sides Name Prefix Name Suffix Sides 20 Icosikai... ...henagon 1 30 Triacontakai... ...digon 2 40 Tetracontakai... ...trigon 3 50 Pentacontakai... ...tetragon 4 60 Hexacontakai... ...pentagon 5 70 Heptacontakai... ...hexagon 6 80 Octacontakai... ...heptagon 7 90 Enneacontakai... ...octagon 8 ...enneagon 9 source: http://www.pubquizhelp.com/sci/polygon.html
What are the polygons with 11-30 sides called?
41
Can you name all the polygons?
Not really, because there are an infinitely large number of polygons. Just keep adding another side to the last one you had and you can go on forever. There are special names for a small group of polygons, starting with one that has three sides, the triangle, and continuing on to four sides (quadrilateral), five sides (pentagon), six (hexagon), and even eight (octagon) or ten (decagon). Once you get past that group, you just name a polygon by the number of sides it has. You call it a 20-gon, or a 30-gon.With the variable n representing the number of sides. There are also Shapes called quadrilaterals which are a group of 4 sided shapes including a square, a rectangle a trapezium and many more! That is what I know and what I can tell you!
What is the name of a 30 sided polygon?
Who knows? Well, maybe me.... I think it might be a decicosagon, because I figure that all polygons from 21-30 end in icosagon, and because all the 13-20 begin with the 3-9 sided shape names.. (apart from 19, with is the enneadecagon of course) the answer will be... A. Decicosagon
What are the names and number of sides of all the polygons?
3 sides= triangle 4 sides= quadrilateral 5 sides= pentagon 6 sides= hexagon 7 sides= heptagon 8 sides= octagon 9 sides= nonagon 10 sides= decagon 11 sides= hendecagon 12 sides= dodecagon 13 sides= tridecagon/13-gon 14 sides= tetradecagon/14-gon 15 sides= pentadecagon/15-gon 16 sides= hexadecagon/16-gon 17 sides= heptadecagon/17-gon 18 sides= octadecagon/18-gon 19 sides= enneadecagon/19-gon 20 sides= icosagon/20-gon 30 sides= triacontagon/30-gon 40 sides= tetracontagon/40-gon 50 sides= pentacontagon/50-gon 60 sides= hexacontagon/60-gon 70 sides= heptacontagon/70-gon 80 sides= octcontagon/80-gon 90 sides= nonacontagon/90-gon 100 sides= hectagon/100-gon 1,000 sides= chiliagon/1,000-gon 10,000 sides= myriagon/10,000-gon 100,000 sides= decimyriagon/100,000-gon 1,000,000 sides= hecatommyriagon/1,000,000-gon Since there are infinitely many polygons, it is impossible to list the names of all of them.
What is the equation in 12y-9 equals 21?
The equation is 12y - 9 = 21. To solve for y, you can start by adding 9 to both sides to isolate the term with y. This gives you 12y = 30. Next, divide both sides by 12 to solve for y, which gives y = 2.5.
How many triangles in 11-30 sided polygons?
Number of triangles in a polygon is determined by (n-2) = number of triangles, whereas n is the number of sides of the polygon
Is a triangle with sides of lengths 20 21 and 30 a right triangle?
No.(20)2 = 400(21)2 = 441(20)2 + (21)2 = 881(30)2 = 900(20)2 + (21)2 is not equal to (30)2
One exterior angle of a regular polygon measures 30 what is the sum of the polygons exterior angle measures?
If the exterior angle is 30o then the shape has 360/30 = 12 sides. An interior angle = 180 - exterior angle = 180 - 30 = 150. Since the shape has 12 sides the interior angles sum to 150 x 12 = 1800o.
Is 21 over 30 in its lowest terms 7 over 10?
Yes, because 3 is the only number that both can be divided by to further reduce both sides. 21/3 = 7, 30/3= 10 so, 21/30 = 7/10
What is5x plus 9 equals 7x plus 21?
-2x = 12 so x = -6 giving -30 + 9 = -42 + 21. Both sides = -21.
