Polygons by the number of sides | Constructible polygons | Elementary shapes
In geometry, a decagon (from the Greek δέκα déka and γωνία gonía, "ten angles") is a ten-sided polygon or 10-gon. The total sum of the interior angles of a simple decagon is 1440°. A self-intersecting regular decagon is known as a decagram. (Wikipedia).
Link: https://www.geogebra.org/m/zrmskt9k
From playlist Geometry: Challenge Problems
What's an Octagon? Geometry Terms and Definitions
An introduction to the octagon, 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.patre
From playlist Socratica: The Geometry Glossary Series
What Is a radian? Coffee ☕️ + Desmos 🙂 this AM = https://www.desmos.com/calculator/bcgjcpci3k. Also added to https://teacher.desmos.com/activitybuilder/custom/60742b18afd8ae0d274b6efb.
From playlist Desmos Activities, Illustrations, and How-To's
The area of a most special octagon.
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From playlist Geometry
Persephone | The Greek Goddess of Spring | Ancient Greek Mythology
Based on a story by Lin and Don Donn - https://ancienthistory.mrdonn.org/myths.html, used with permission. Persephone | The Greek Goddess of Spring | Ancient Greek Mythology Greek Goddess of Spring. Daughter of Demeter and Zeus, Persephone is the beautiful goddess of spring. She is call
From playlist Ancient Greek Mythology
Here we show a quick way to set up a face in desmos using domain and range restrictions along with sliders. @shaunteaches
From playlist desmos
Use Proportions to Solve Applications (No Cross Products)
This video explains how to use ratios and rates to form proportions to solve applications problems
From playlist Number Sense - Decimals, Percents, and Ratios
P. Apisa - Marked points in genus two and beyond
In the principal stratum in genus two, McMullen observed that something odd happens - there is only one nonarithmetic Teichmuller curve - the one generated by the decagon. This strange phenomenon begets another - a primitive translation surface in genus two admits a periodic point that is
From playlist Ecole d'été 2018 - Teichmüller dynamics, mapping class groups and applications
#Mandala MANDALA LOVERS ALERT- Mandala (Sanskrit: मण्डल, lit, circle) is a spiritual and ritual symbol in Indian religions, representing the universe-check out more videos about mandala below-. * check out my Blog Post for details on Mandala supplies- https://www.theartgeekblog.com/post/mu
From playlist Bag
NAMING POLYGONS | What is the name of 69 sided polygon?
#namingpolygons #mathlesson #brainfeeding
From playlist Summer of Math Exposition Youtube Videos
Find the Sum of the Angles of a Decagon
Find the Sum of the Angles of a Decagon If you enjoyed this video please consider liking, sharing, and subscribing. Udemy Courses Via My Website: https://mathsorcerer.com My FaceBook Page: https://www.facebook.com/themathsorcerer There are several ways that you can help support my chan
From playlist Polygons
Finding Interior and Exterior Angles in a Polygon
Learn how to find the Interior and Exterior Angles of a Polygon in this free math video tutorial by Mario's Math Tutoring. We discuss regular and nonregular polygons and go over the forumulas as well as example problems. 0:21 Formula for the Sum of Interior Angles in a Polygon 1:14 Formul
From playlist Geometry
J. Smillie - Horocycle dynamics (Part 2)
A major challenge in dynamics on moduli spaces is to understand the behavior of the horocycle flow. We will motivate this problem and discuss what is known and what is not known about it, focusing on the genus 2 case. Specific topics to be covered include: * SL_2(R) orbit closures and inva
From playlist Ecole d'été 2018 - Teichmüller dynamics, mapping class groups and applications
Debora Coombs - Raising Penrose - G4G13 Apr 2018
Raising Penrose tiling into a dimension of somewhere between two and five dimensions.
From playlist G4G13 Videos
Interior and Exterior Angles of Polygons | Revision for Maths GCSE and IGCSE
I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. Tutoring - We can match you with an experienced t
From playlist Edexcel GCSE Maths Revision
Junior Maths Challenge 2018 Questions 1,2,3,4 and 5 (UKMT)
'Get ready for A-level maths' course: https://mathsaurus.thinkific.com/courses/get-ready-for-a-level-maths This video includes questions from past UKMT maths challenge papers with the express permission of UK Mathematics Trust. The questions may not be copied or made available elsewhere
From playlist UKMT Junior Maths Challenge
What is a radian? 🤔 Interactive dynamic radius wrapping exploration for Ss: https://www.geogebra.org/m/e3aamere #GeoGebra #MTBoS #ITeachMath #algebra #geometry #trigonometry #mathchat
From playlist Trigonometry: Dynamic Interactives!
Polygons & Quadrilaterals (Complete Geometry Course Lesson lesson 7)
This is the seventh lesson in Mario's Math Tutoring's Complete Geometry Course here on YouTube. We discuss formulas for finding the interior and exterior angles in polygons as well take a deep dive into quadrilaterals such as parallelograms, rhombi, rectangles, and squares as well as trap
From playlist Geometry Course (Complete Course - Mario's Math Tutoring)