Polyhedra | Prismatoid polyhedra
In solid geometry, a wedge is a polyhedron defined by two triangles and three trapezoid faces. A wedge has five faces, nine edges, and six vertices. A wedge is a subclass of the prismatoids with the base and opposite ridge in two parallel planes. A wedge can also be classified as a digonal cupola. Comparisons: * A wedge is a parallelepiped where a face has collapsed into a line. * A quadrilaterally-based pyramid is a wedge in which one of the edges between two trapezoid faces has collapsed into a point. (Wikipedia).
Geometry - Ch. 1: Basic Concepts (28 of 49) What are Convex and Concave Angles?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain how to identify convex and concave polygons. Convex polygon: When extending any line segment (side) it does NOT cut through any of the other sides. Concave polygon: When extending any line seg
From playlist THE "WHAT IS" PLAYLIST
Determine the values of two angles that lie on a lie with a third angle
👉 Learn how to define and classify different angles based on their characteristics and relationships are given a diagram. The different types of angles that we will discuss will be acute, obtuse, right, adjacent, vertical, supplementary, complementary, and linear pair. The relationships
From playlist Angle Relationships From a Figure
Inscribed Angle Theorem: Proof Without Words
Link: https://www.geogebra.org/m/PgjnhjJF
From playlist Geometry: Dynamic Interactives!
Geometry - Ch. 1: Basic Concepts (24 of 49) What are Vertical Angles and Linear Pairs?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the definition of an and show how to recognize vertical angle and linear pairs. Linear pairs are angles whose non-common rays are opposite rays. Vertical angles are angles whose 2 sides form o
From playlist THE "WHAT IS" PLAYLIST
Angle-Angle Triangle Similarity Theorem: Dynamic Proof
Link: https://www.geogebra.org/m/Q8EYTUK2
From playlist Geometry: Dynamic Interactives!
From playlist Geometry TikToks
Perpendicular Bisector (Definition + 1 Theorem)
Link: https://www.geogebra.org/m/pFyDfP2D
From playlist Geometry: Dynamic Interactives!
What is a Quadrilateral? – Geometric Shapes – Geometry
Quadrilaterals all have four sides, but they all look a little different. How many kinds of quadrilaterals do you know? In this video we’ll talk about the different types of quadrilaterals. These geometric shapes include the square, rectangle, parallelogram, trapezoid and rhombus. Anot
From playlist Euclidean Geometry
Similarity in Right Triangles (I)
Link: https://www.geogebra.org/m/fswR8fRV
From playlist Geometry: Dynamic Interactives!
Lecture 3: Exterior Algebra (Discrete Differential Geometry)
Full playlist: https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1YmZysAiIYSSS For more information see http://geometry.cs.cmu.edu/ddg
From playlist Discrete Differential Geometry - CMU 15-458/858
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From playlist Linear Algebra
This video introduces the Linear Algebra approach to area, and to volume. It also introduces bi-vectors, with applications from physics: torque, angular momentum and motion in a magnetic field. NJ Wildberger is also the developer of Rational Trigonometry: a new and better way of learning
From playlist A first course in Linear Algebra - N J Wildberger
Supplemental: Vector-Valued Differential Forms (Discrete Differential Geometry)
Full playlist: https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1YmZysAiIYSSS For more information see http://geometry.cs.cmu.edu/ddg
From playlist Discrete Differential Geometry - CMU 15-458/858
Lecture 6: Exterior Derivative (Discrete Differential Geometry)
Full playlist: https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1YmZysAiIYSSS For more information see http://geometry.cs.cmu.edu/ddg
From playlist Discrete Differential Geometry - CMU 15-458/858
Lecture 4: k-Forms (Discrete Differential Geometry)
Full playlist: https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1YmZysAiIYSSS For more information see http://geometry.cs.cmu.edu/ddg
From playlist Discrete Differential Geometry - CMU 15-458/858
Lecture 5: Differential Forms (Discrete Differential Geometry)
Full playlist: https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1YmZysAiIYSSS For more information see http://geometry.cs.cmu.edu/ddg
From playlist Discrete Differential Geometry - CMU 15-458/858
Signup for your FREE trial of Wondrium here: http://ow.ly/O6AN30siJKg Bird water whistle's have a really interesting mechanism. I made a 2D transparent version so you could see what's going on inside. I also explain how whistles work. Including the kettle whistle. CREDITS: Air jet imping
From playlist Everything in chronological order
GAME2020 - 1. Dr. Leo Dorst. Get Real! (new audio!)
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From playlist Bivector.net
Hilbert Space Techniques in Complex Analysis and Geometry (Lecture - 3) by Dror Varolin
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#Cycloid: A curve traced by a point on a circle rolling in a straight line. (A preview of this Sunday's video.)
From playlist Miscellaneous