Johnson solids

Pentagonal rotunda

In geometry, the pentagonal rotunda is one of the Johnson solids (J6). It can be seen as half of an icosidodecahedron, or as half of a pentagonal orthobirotunda. It has a total of 17 faces. A Johnson solid is one of 92 strictly convex polyhedra that is composed of regular polygon faces but are not uniform polyhedra (that is, they are not Platonic solids, Archimedean solids, prisms, or antiprisms). They were named by Norman Johnson, who first listed these polyhedra in 1966. (Wikipedia).

Pentagonal rotunda
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What's a Pentagon? Geometry Terms and Definitions

An introduction to the pentagon, a fundamental geometric shape. Geometer: Louise McCartney Artwork: Kelly Vivanco Director: Michael Harrison Written & Produced by Kimberly Hatch Harrison and Michael Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patr

From playlist Socratica: The Geometry Glossary Series

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The Chaos Game in Pentagon, Octagon, and Square (math visualization)

To buy me a coffee, head over to https://www.buymeacoffee.com/VisualProofs Thanks! In this video, we explore the differences between starting with a random dot in a regular pentagon, octagon, and square and iterating the procedure of choosing a vertex (or midpoint for square) at random a

From playlist Fractals

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How to find the volume of a pentagonal pyramid

👉 Learn how to find the volume and the surface area of a pyramid. A pyramid is a 3-dimensional object having a polygon as its base and triangular surfaces converging at a single point called its apex. A pyramid derives its name from the shape of its base, i.e. a pyramid with a triangular b

From playlist Volume and Surface Area

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How to determine if a set of points makes up a rectangle using the distance formula

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

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Determine if a set of points is a trapezoid or not

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

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Using a set of points determine if the figure is a parallelogram using the midpoint formula

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

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Golden rotio and Pentagons

In this Video I explain why the ratio of the diagonal of the Pentagon to side of the pentagon is equal to the golden ratio Hope you enjoy :)

From playlist Summer of Math Exposition Youtube Videos

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ARTH 4037 Venice

Art Historian Dr. Vida Hull ETSU Online Programs - http://www.etsu.edu/online

From playlist ETSU: ARTH 4037 Italian Renaissance | CosmoLearning.org Art

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Art and Science: Samuel F.B. Morse

Skip the waitlist and invest in blue-chip art for the very first time by signing up for Masterworks: https://masterworks.art/historyguy Purchase shares in great masterpieces from artists like Pablo Picasso, Banksy, Andy Warhol, and more. 🎨 See important Masterworks disclosures: http://mast

From playlist Art and history

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Palace of Fine Symmetry

The rotunda at the Palace of Fine Arts in San Francisco has a lot of symmetry! The raw footage for this video, from before the transformation, is at https://www.youtube.com/watch?v=iiWapD4Khyc I transformed this spherical raw footage by applying a number of different complex functions to

From playlist Spherical video

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Determine if a set of points makes up a rectangle using the distance formula

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

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President Eisenhower: State Funeral in Washington D.C. (1969) | British Pathé

Watch as a procession of thousands of prestigious guests follow the state funeral of former US President General Dwight 'Ike' Eisenhower as he is transported through Washington D.C. to Washington Cathedral. #BritishPathé #History #POTUS #President #Funeral #WashingtonDC License This Fil

From playlist British Pathé | Explore the Archive

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ARTH 2020/4037 Venice 4: Tintoretto, Veronese, Palladio

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From playlist ETSU: ARTH 4037 Italian Renaissance | CosmoLearning.org Art

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How to determine the perimeter of a quadrilateral using distance formula of four points

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

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From playlist Augmented, Virtual, and Extended Reality Seminar Series

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The First Panoramas - Objectivity 250

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From playlist The University of Edinburgh

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Using the slope formula to determine if points make up a rectangle

👉 Learn how to determine the figure given four points. A quadrilateral is a polygon with four sides. Some of the types of quadrilaterals are: parallelogram, square, rectangle, rhombus, kite, trapezoid, etc. Each of the types of quadrilateral has its properties. Given four points that repr

From playlist Quadrilaterals on a Coordinate Plane

Related pages

Rotunda (geometry) | Elongated triangular pyramid | Circumscribed sphere | Pentagon | Decagon | Icosidodecahedron | Pentagonal cupola | Pentagonal orthobirotunda | Surface area | Geometry | Johnson solid | Face (geometry) | Regular polygon | Triangle | Volume | Convex set | Formula