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# What is a polygon with all of its sides and angles congruent?

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### Quick Answer

**An angle with all of its sides and angles congruent is a regular polygon.** The term "congruent" means exactly equal in shape or size, while a polygon is defined as a closed figure made up of sides that are line segments.

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Every square, by definition, has four sides of equal length and four right angles measuring 90 degrees each. Because the sides and angles are congruent, a square also classifies as a regular polygon.

An equilateral triangle is considered a regular polygon because it has three congruent sides and three angles measuring 60 degrees each. The right triangle is not a regular polygon because it has one 90-degree angle and two smaller angles that add up to 90 degrees. In an isosceles right triangle, these two smaller angles both measure 45 degrees each. In a 30-60-90 triangle, one of the smaller angles measures 30 degrees and the other measures 60 degrees.

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Q:
## What is the point where the sides meet in a polygon?

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Full Answer >**The point where the sides of a polygon meet is called the vertex.**A polygon is a closed plane figure with three or more sides.Filed Under: -
Q:
## Is a square a polygon?

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Full Answer >**A square is a polygon with four sides.**A polygon is defined as a closed plane figure with three or more sides. The sides of a polygon are line segments.Filed Under: -
Q:
## What is a concave polygon?

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Full Answer >**According to Math Open Reference, a concave polygon refers to a polygon or a plane figure that has one or more interior angles that measure greater than 180 degrees.**This type of polygon is the opposite of the convex polygon.Filed Under: -
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## Is a cube a polygon?

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Full Answer >**A cube is a three-dimensional solid, more properly called a polyhedron.**It is made up of six congruent square faces all set at perpendicular angles. It is one of the five convex polyhedrons known as the Platonic solids.Filed Under: