they're not. A 10 sided figure is a decagon, while a 12 sided figure is a dodecagon. do=2, deca=10.
All 4-sided polygons are quadrilaterals
All seven sided polygons are known as "heptagons". Heptagons that have all side lengths the same are known as "regular heptagons".
All eight sided polygons are known as "octagons". Octagons that have all side lengths the same are known as "regular octagons".
All nine sided polygons are known as "nonagons". Nonagons that have all side lengths the same are known as "regular nonagons".
Potential answers: shapes, polygons, quadrilaterals [four-sided polygons], parallelograms [quadrilaterals with opposite sides of the same length and parallel to each other].
A polygon has the same amount of vertices as it does sides, so it would have 7 vertices.
Parallelograms are quadrilaterals that have two pairs of parallel lines. Hexagons are six sided polygons, and therefore the two are not the same.
Yes because they all belong to the same class of polygons known as 4 sided quadrilaterals.
Three sided polygons would be triangles. Triangles that have the same shape (same angle measures) but are different sizes (different side lengths) would be called similar triangles. In similar triangles, corresponding sides have lengths in the same ratio. If triangle ABC is similar to triangle DEF, then: AB/DE = BC/EF = AC/DF.
The correct name in English for a 7-sided polygon is "heptagon." The word "septagon" is used incorrectly by some who do not understand that the names of polygons are derived from Greek, not from Latin. The Latin word for "seven is "septem" but the Greek word is "hexa."
If the seven sides are all the same length , then it is a regular polygon. A seven sided polygon is named a 'HEPTAGON'. If the seven sides are regular then it can be named as a ' Regular Heptagon'.
All polygons have the same number of sides as angles. So if there are 12 sides, thereare 12 angles.