Calculator Soup
Calculator Soup: Regular Polygon Calculator
Use this calculator to calculate properties of a regular polygon. Enter any 1 variable plus the number of sides or the polygon name. Calculates side length, inradius, circumradius, area, and perimeter.
Curated OER
Ic Teachers: Shapes Polygons
Introductory site on polygons, with exercises on the basic ones.
Curated OER
Ic Teachers: Shapes: Polygons
The properties of the four different types of polygons--pentagons, hexagons, heptagons, and octagons--are discussed here. Some practice questions are also given to test your knowledge.
Curated OER
Unesco: Russian Federation: Kizhi Pogost
The pogost of Kizhi (i.e. the Kizhi enclosure) is located on one of the many islands in Lake Onega, in Karelia. Two 18th-century wooden churches, and an octagonal clock tower, also in wood and built in 1862, can be seen there. These...
Curated OER
Wikipedia: National Historic Landmarks in New York: Armour Stiner House
Octagonal implementation of architectural ideas of Orson Squire Fowler.
Curated OER
Web Gallery of Art: Scenes From the Life of Christ (2)
An image of "Scenes from the Life of Christ (2)", created by Mariotto Di Nardoz (Tempera on octagonal panel, 28 x 33 cm).
Curated OER
Web Gallery of Art: Scenes From the Life of Christ (3)
An image of "Scenes from the Life of Christ (3)", created by Mariotto Di Nardoz (Tempera on octagonal panel, 29 x 34 cm).
Curated OER
Web Gallery of Art: Scenes From the Life of Christ (1)
An image of "Scenes from the Life of Christ (1)", created by Mariotto Di Nardoz (Tempera on octagonal panel, 30 x 31 cm).
Curated OER
Web Gallery of Art: Scenes From the Life of Christ (4)
An image of "Scenes from the Life of Christ (4)", created by Mariotto Di Nardoz (Tempera on octagonal panel, 30 x 31 cm).
Curated OER
Web Gallery of Art: Scenes From the Life of Christ (5)
An image of "Scenes from the Life of Christ (5)", created by Mariotto Di Nardoz (Tempera on octagonal panel, 31 x 31 cm).
Curated OER
Web Gallery of Art: Scenes From the Life of Christ (6)
An image of "Scenes from the Life of Christ (6)", created by Mariotto Di Nardoz (Tempera on octagonal panel, 31 x 31 cm).
University of California
Geometry Junkyard: Dissection Tiling
A great and very informative article about dissection tiling or tessellation.
PBS
Pbs Teachers: Architecture: Community Geometry
Identify architectural structures and objects in the community that represent different figures and types of geometry and mathematics.
ClassFlow
Class Flow: Segments and Polygons
[Free Registration/Login Required] This flipchart reviews segments, parallel and perpendicular lines and then introduces polygons including quadrilaterals. It has many real world examples of shapes and includes Activote assessment.
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