# How can we name a polygon?

In most cases a polygon is named based on the number of its sides (angles, vertices) and/or properties of these elements.

See below.

Triangle: a polygon with three sides (and three angles, three vertices). Rectangle: a polygon with all right angles Hexagon: a polygon with six sides (and six angles, six vertices) Octagon: a polygon with eight sides (and eight angles, eight vertices)

Sometimes, a characteristic of a polygon is so important that it alone classifies the polygon. Parallelogram - a polygon with four sides with opposite side parallel to each other; Square - a regular polygon with four equal sides and four equal angles . Rhombus - a polygon with four equal sides.

Sometimes, both the number of sides and some property are present in a name. Isosceles triangle - a triangle with two sides equal to each other in length. Regular pentagon - a five-sided polygon with all sides and all interior angles equal to each other.

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A polygon is named based on the number of sides it has. The most common way to name a polygon is by using a prefix denoting the number of sides followed by the suffix "-gon." For example:

3 sides: Triangle 4 sides: Quadrilateral 5 sides: Pentagon 6 sides: Hexagon 7 sides: Heptagon or Septagon 8 sides: Octagon 9 sides: Nonagon or Enneagon 10 sides: Decagon And so on.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- From a hot air balloon, the angle between a radio antenna straight below and the base of the library downtown is #57°#, as shown below. If the distance between the radio antenna and the library is #1.3 mls#, how many miles high is the balloon?
- Is it possible to have a equilateral right triangle?
- Can you construct a triangle that has side lengths 2 in., 3 in., and 6 in.?
- Does the altitude of an isosceles triangle bisect the base? Please explain.
- How do you find the related acute angle?

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