Names of Polygons 1 monogon (Monogon and digon can only 2 digon be used in rather special 3 trigon, triangle circumstances. Trigon and 4 tetragon, quadrilateral tetragon are alternatives to 5 pentagon triangle and quadrilateral; 6 hexagon the adjectival forms trigonal 7 heptagon and tetragonal are more common.) 8 octagon 9 enneagon 10 decagon ...
Identify regular and irregular polygons and their characteristics
Regular polygons. There are names for other shapes with sides of the same length. These include pentagon which has 5 sides, hexagon has 6, heptagon has 7, and octagon has 8 sides.
Polygons are two-dimensional objects, not solids. Polygons are classified and described by the number of sides, the kind of angles, and whether any of the sides are the same length (or congruent). Many polygons have special names. This figure shows the most common polygons. Notice that we identified a 4-sided polygon as a quadrilateral.
Tagged under: polygons,names polygons,memorize names polygons, memorize,geometry,triangle,hexagon,decagon,quadrilateral,pentagon,octagon,heptagon,nonagon Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
Names of Polygons with n sides. Depending on the number of sides a polygon has, we assign it a different name. There are two basic ways to assign the name. The simplest way is to simply refer to a polygon with n sides as an n-gon. For example, a polygon with seven sides is a 7-gon.
The polygon with 1,000 sides, 1,000 vertices and 1,000 angles is called a chiliagon or a 1,000-gon. The term "chiliagon," with a Greek-derived prefix meaning “thousand,” is a proposed name for the 1,000-sided, two-dimensional shape, but it is seldom used.
Formula for the area of a regular polygon. 2. Given the radius (circumradius) If you know the radius (distance from the center to a vertex, see figure above): where r is the radius (circumradius) n is the number of sides sin is the sine function calculated in degrees (see Trigonometry Overview) . To see how this equation is derived, see Derivation of regular polygon area formula.
Polygon math stations. I’ve also put together some activity sheets that you could use in a math center to help your students learn more about polygons. Fill in the form below to get your copy now. Shape bingo. A fun way for kids to learn about shapes and their name and attributes is to play a game of shape bingo.
For capturing polygons. Click on the Capture Polygon button ; Click a set of points along the perimeter of the polygon. RIGHT click when you have reached the final point to finish, and choose a name for the polygon; Click on Toggle editing to save the polygon layer; For editing points, lines and polygons: