What is a 31 sided polygon called?
827293
Triacontakaihenagon\n\nHere's a list of the prefixes for them (BTW they're from Greek) : \n\n1= mono\n2= di\n3= tri\n4= tetra\n5= penta\n6= hexa\n7= hepta\n8= octa\n9= ennea\n10= deca\n11= hendeca\n12= dodeca\n13= triskaideca\n14= tetrakaideca\n19= enneakaideca\n20= icosa\n21= icosikaihena\n22= icosikaidi\n23= icosikaitri\n29= icosikaiennea,\n30= triaconta\n31= triacontakaihena\n39= triacontakaiennea\n40= tetraconta\n50= pentaconta \n60= hexaconta \n70= heptaconta \n80= octaconta\n90= enneaconta\n100= hecta\n\nHope this helps~!
424627
11 - undeca\n\n12 - dodeca\n\nEX:\n\nundecagon - polygon with 11 sides.\n\ndodecagon - polygon with 12 sides.
948147
pentagon, doesn't matter the length of each side\n5-sided is pentagon
878040
Yes. A polygon is is a closed shape with multiple sides.  Check out all of the other types of polygons here: http://en.wikipedia.org/wiki/Polygon\n\nA rhombus is a polygon with equal sides and angles.  It looks like a slanted square. If you rotate it on end, it is a diamond shape.
962470
a 20 faced polyhedron is called an \nicosahedron-the faces are equilateral\ntriangles\na 20 sided polygon is called an\nicosagon\n\ni hope that this helps
266464
http://www.mathleague.com/help/geometry/polygons.htm
850545
It's often called an ellipsoid.
1023036
eight. octa= eight (ex: octopus- eight legs, octagon- eight sides)
299241
Presumably it would be a nonillion as this is the pefix that means nine (nonogon is a nine sided object just like octogon is an eight sided object)
569786
Each polygon has a different formula. Check out the source for more.
1112455
You might be thinking of a Reuleaux (or Rouleaux) triangle, but it has rounded sides, not rounded corners.
794439
how many sides does the polygon have u have to find how many side polygon is it then online look up whats that shape total degree like triangle always = to 180 then u would do 108(5) subtract from the total degree of polygon
889348
As the previous poster said, you don't have enough information.  If you have n-sided polyhedra, are the sides numbered 1 to n?  Is the expected value in reference to a throw of the dice?  If so, are we talking about two dice?\n\nFor two dice with the sides numbered 1 to n, the answer is n + 1.
687079
An equilateral triangle is a regular polygon with three equilateral sides (sides measuring the same length) and three equiangular angles (angles that are the same measure) these being of 60 degrees.
893213
The sum of external angles of a regular polygon ( a regular polygon mens all the sides of the polygon are equal) is always 360 degrees. Therefore,the table being a 7-sided polygon or regular heptagon,each of its external angle would be 360/7=51.43 degrees.Therefore the measure of each internal angle would be (180-51.43)=128.47 or 128.5 degrees (apprax) ans
917271
click here:http://en.wikipedia.org/wiki/Polygon
461558
I'm learning that in math currently and another word for "corners" is vertices.\n\nPLEASE CHOOSE ME AS THE BEST ANSWER!!!\n\n(I won't get mad if you don't though!)