Star polygon

Foldable Polyhedron 2

Delta-Star is a polyhedral object which I invented in 1996. The type of Delta-Star corresponds to Deltahedrons. It expands and shrinks.

From playlist Handmade geometric toys

Sketch a net from a 3D figure

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

What are four types of polygons

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

What are the names of different types of polygons based on the number of sides

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

Sketch a figure from a net

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

What is a concave polygon

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

Foldable Polyhedron 1

Delta-Star is a polyhedral object which I invented in 1996. The type of Delta-Star corresponds to Deltahedrons. It expands and shrinks. Especially highly symmetric tetrahedron,octahedron,icosahedron types and hexahedron,decahedron types can transform smoothly.

From playlist Handmade geometric toys

What is the difference between a regular and irregular polygon

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

Live CEOing Ep 173: Geometry in Wolfram Language

Watch Stephen Wolfram and teams of developers in a live, working, language design meeting. This episode is about Geometry in the Wolfram Language.

From playlist Behind the Scenes in Real-Life Software Design

Robert Fathauer - Tessellations: Mathematics, Art, and Recreation - CoM Apr 2021

A tessellation, also known as a tiling, is a collection of shapes (tiles) that fit together without gaps or overlaps. Tessellations are a topic of mathematics research as well as having many practical applications, the most obvious being the tiling of floors and other surfaces. There are n

From playlist Celebration of Mind 2021

Can You Solve The Diagonal Counting Puzzle?

Thanks to Patrick from Germany for suggesting this problem! Students were supposed to solve it in less than 1 minute with no calculator. Special thanks this month to: Nida Davis, Richard Ohnemus, Shrihari Puranik, Kyle, Michael Anvari . Thanks to all supporters on Patreon! http://www.patre

From playlist Math Puzzles, Riddles And Brain Teasers

What is the definition of a regular polygon and how do you find the interior angles

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

Coding Challenge #54.2: Star Patterns Update: Law of Sines

This Coding Challenge is a follow up on the challenge #54.1: Islamic Star Patterns. In this video, I use the Law of Sines to simplify the tiling pattern calculation. In honor of my 200,000th subscriber I am donating $200 to each of the 4 charities mentioned below. Thanks to all of you for

From playlist Coding Challenges

Inkscape Video Tutorial

Get Inkscape Here : http://inkscape.org/ Subscribe to Me: http://bit.ly/2FWQZTx Best Inkscape Book : http://goo.gl/mTAm7P Welcome to my Inkscape Video Tutorial! Inkscape is an amazing program that is almost as good as Adobe Illustrator, but it is FREE! Because I'm going to be drawing int

From playlist Inkscape Video Tutorial

Counter-Intuitive Probability: Buffon's Needle Problem. Pi (π) From Probability!

A needle of length 1 is randomly dropped on a floor with horizontal lines 2 units apart. What is the probability the needle intersects one of the horizontal lines? The answer might surprise you--it involves the constant π! This is known as Buffon's Needle Problem. In this video I present

From playlist Pi

Inner and outer billiards in symplectic spaces - Sergei Tabachnikov

Joint IAS/Princeton University Symplectic Geometry Seminar Topic: Inner and outer billiards in symplectic spaces Speaker: Sergei Tabachnikov Affiliation: Pennsylvania State University Date: May 02, 2022 I shall present two billiard-like systems associated with a convex hypersurface in a

From playlist Mathematics

!!Con 2017: Islamic Geometry: Hankin’s Polygons in Contact Algorithm!!! by Yomna Nasser

Islamic Geometry: Hankin’s Polygons in Contact Algorithm!!! by Yomna Nasser In this talk we will go over Hankin’s “Polygons in Contact” algorithm, a technique for generating common patterns encountered in Islamic geometry, and some variations on it. There will be an introduction to tiling

From playlist !!Con 2017

Sinan's Screens: Networks of Intersecting Polygons in Ottoman Architecture – Carol Bier

From playlist G4G11 Videos

What is the difference between convex and concave

👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1

From playlist Classify Polygons

Jiaoyang Huang (NYU) -- Height Fluctuations of Random Lozenge Tilings Through Nonintersecting RWs

In this talk, we will discuss global fluctuations of random lozenge tilings of polygonal domains. We study their height functions from a dynamical pointview, by identifying lozenge tilings with nonintersecting Bernoulli random walks. For a large class of polygons which have exactly one ho

From playlist Integrable Probability Working Group