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Triangles, squares, rectangles, pentagons, hexagons and octagons are some of the most common polygons. A polygon is a plane figure with many sides made up of line segments. More »
A polygon riddle is a series of questions or statements about polygons. Each question or statement gives a clue about a certain property of a polygon, and the objective is to guess the shape. Polygon riddles are aimed at... More »
An inscribed polygon is a twodimensional 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. More »
Geometric shapes found in nature include pentagons, hexagons, spirals, waves and lines. These shapes are fascinating examples of mathematical laws being manifested by natural or biological means. More »
Some examples of plane figures are triangles, rectangles, squares, rhombuses, parallelograms, circles, ovals, hearts, pentagons and hexagons. A plane figure is a flat figure with closed lines that stays in a single plane... More »
Stop signs used in the United States and most other countries are eightsided octagons, the shape of which was initially proposed in 1923 by the Mississippi Valley Association of State Highway Departments. The red octago... More »
An official soccer ball typically consists of 20 white hexagons and 12 black pentagons tightly stitched together for a puzzlelike fit. Manufacturers began using patches of leather hexagons and pentagons to construct soc... More »

US StandardsAligned
K12 Curriculum Aligned to Stateand Common Core Standards.

IXL Family Membership
Get Started for $9.95/month.Win Prizes, Certificates. Have Fun!

IXL K12 Math Practice
IXL is the Web's Most AdaptiveMath Practice Site. Try it Now!

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