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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.
Know MoreEvery 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.
Learn more about ShapesThe point where the sides of a polygon meet is called the vertex. A polygon is a closed plane figure with three or more sides.
Full Answer >An inscribed polygon is a two-dimensional shape contained entirely within a circle. The points of each corner are on the circumference of the circle. Inscribed polygons have other special geometric properties.
Full Answer >Some polygon names include triangle, quadrilateral, pentagon, hexagon and septagonn. Most polygon names are derived from a Greek word referring to the number of sides a shape has.
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.
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