0
Shapes with 13 to 20 sides are known as polygons. Specifically, a 13-sided polygon is called a tridecagon, a 14-sided polygon is called a tetrakaidecagon, a 15-sided polygon is called a pentadecagon, a 16-sided polygon is called a hexadecagon, a 17-sided polygon is called a heptadecagon, an 18-sided polygon is called an octadecagon, a 19-sided polygon is called an enneadecagon, and a 20-sided polygon is called an icosagon.
Add your answer:
Earn +20 pts
What is a n-gon 20-gon and decagon?
They are the names of polygons with differents number of sides
What are the names of all polygon shapes and 3-d shapes up to 30 shapes?
-27
What are the 20 polygons?
Hendecagon has 11 sides,dodecagon has 12 sides,triskaidecagon has 13 sides,tetradecagon has 14 sides,pentadecagon has 15 sides,hexadecagon has 16 sides,17 sides is heptadecagon,octadecagon have 18 sides,enneadecagon has 19 sides,20 sides is called as icosagon. The prefix of that 9 polygons is Greek. A polygone with 4 sides is called a quadrilateral.
Names of polygons with 11 sided to 20 sides?
11 Undecagon, Hendecagon 12 Dodecagon 13 Tridecagon, Triskaidecagon 14 Tetradecagon, Tetrakaidecagon 15 Pentadecagon, Pentakaidecagon 16 Hexadecagon, Hexakaidecagon 17 Heptadecagon, Heptakaidecagon 18 Octadecagon, Octakaidecagon 19 Enneadecagon, Enneakaidecagon 20 Icosagon
How do you do the elimination method for 8x-y20 and -5x y-8?
If this is: 8x - y = 20 -5x = y - 8 8x - y = 20 -5x - y = -8 multiply by -1in order to eliminate y; 8x - y = 20 5x + y = 8 add both equations; 13x = 28 x = 28/13 substitute the value of x into the one of the equations in order to find y. For example, substitute it into the first one; 8(28/13) - y = 20 224/13 - y = 20 multiply both sides with 13; 224 - 13y = 260 224 - 224 - 13y = 260 - 224 -13y = 36 multiply both sides by -1; 13 y = -36 divide both sides by 13; y = -36/13 So the solution set is (28/13, -36/13) Check: 8(28/13) -(-36/13)= 224/13 + 36/13 = 260/13 = 20 -5(28/13) = -36/13 - 8 ? -140/13 = -36/13 -8 ? -140/13 = -36/13 - 8(13/13) ? -140/13 = -36/13 - 104/13 ? -140/13 = -140/13
Names of polygons with 11 sides to 20 sides?
11 regular hendecagon 12 regular dodecagon 13 regular triskaidecagon 14 regular tetradecagon 15 regular pentadecagon 16 regular hexadecagon 17 regular heptadecagon 18 regular octadecagon 19 regular enneadecagon 20 regular icosagon
Did the globe theatre have 13 sides?
Examination of the foundation of the Globe shows that it had 20 sides.
What is the names of 13-20 sided polygon?
N-gon is the name of 13-20 sided polygon.
How many basic geometric shapes are there?
Geometric shapes formed from three or more straight lines (polygons) include:3 sidestriangle4 sides (quadrilaterals)square (4 equal sides, right angles)trapezoid (4 sides with only 1 set of parallel lines)rectangle (4 sides with 2 sets of parallel lines)rhombus (4 sides, 2 parallel pair)5 sides - pentagon6 sides - hexagon7 sides - heptagon (rarely septagon)8 sides - octagon9 sides - enneagon (classically - nonagon)10 sides - decagon11 sides - hendecagon (classically - undecagon)12 sides - dodecagon (classically - duodecagon)13 sides - tridecagon or triskaidecagon14 sides - tetradecagon15 sides - pentadecagon16 sides - hexadecagon17 sides - heptadecagon18 sides - octadecagon19 sides - enneadecagon (nonadecagon)20 sides - icosagon*For a list of some other basic shapes, see the related link.
What are some shapes that are geometric?
The names of common 2-dimensional geometrical shapes: No straight sides - circle (constant diameter) - ellipse, oval (varying width) Three or more straight lines (polygons) -- 3 sides -triangle 4 sides - quadrilaterals square (4 equal sides, right angles) trapezoid (4 sides with only 1 set of parallel lines) rectangle (4 sides with 2 sets of parallel lines) rhombus (4 sides, 2 parallel pair) 5 sides - pentagon 6 sides - hexagon 7 sides - heptagon (rarely septagon) 8 sides - octagon 9 sides - enneagon (classically - nonagon) 10 sides - decagon 11 sides - hendecagon (classically - undecagon) 12 sides - dodecagon (classically - duodecagon) 13 sides - tridecagon or triskaidecagon 14 sides - tetradecagon 15 sides - pentadecagon 16 sides - hexadecagon 17 sides - heptadecagon 18 sides - octadecagon 19 sides - enneadecagon (nonadecagon) 20 sides - icosagon 30 sides - tricontagon 1000 sides - chiliagon 10000 sides - myriagon 1000000 sides - megagon (see the related link for more names)
What are the names of 2d shapes up to 20?
home.btconnect.com/shapemakingclub/twodimensionalshapes.htmlUse this link. It will teach you more than just a 20 sided polygon.
What is a n-gon 20-gon and decagon?
They are the names of polygons with differents number of sides
3x plus 6 equals 5x-20 what is x?
3x + 6 = 5x - 20 Subtract 3x from both sides: 6 = 2x - 20 Add 20 to both sides: 26 = 2x Divide both sides by 2: 13 = x
What is 5-blank to equal 20-28?
5 - blank = 20 - 28 Simplify the right hand side: 5 - blank = -8 Add 8 to both sides: 13 - blank = 0 Add blank to both sides: 13 = blank.
What are the names of all polygon shapes and 3-d shapes up to 30 shapes?
-27
What is the name of 13 14 15 16 17 18 19 20 sided polygon?
Sides-------Name 13--------Tridecagon 14------Tetradecagon 15------Pentadecagon 16-------Hexadecagon 17------Heptadecagon 18-------Octadecagon 19------Enneadecagon 20---------Icosagon
What are the 20 polygons?
Hendecagon has 11 sides,dodecagon has 12 sides,triskaidecagon has 13 sides,tetradecagon has 14 sides,pentadecagon has 15 sides,hexadecagon has 16 sides,17 sides is heptadecagon,octadecagon have 18 sides,enneadecagon has 19 sides,20 sides is called as icosagon. The prefix of that 9 polygons is Greek. A polygone with 4 sides is called a quadrilateral.
