Euclidean geometry | Angle | Elementary geometry
In surveying, triangulation is the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline by using trigonometry, rather than measuring distances to the point directly as in trilateration. The point can then be fixed as the third point of a triangle with one known side and two known angles. Triangulation can also refer to the accurate surveying of systems of very large triangles, called triangulation networks. This followed from the work of Willebrord Snell in 1615–17, who showed how a point could be located from the angles subtended from three known points, but measured at the new unknown point rather than the previously fixed points, a problem called resectioning. Surveying error is minimized if a mesh of triangles at the largest appropriate scale is established first. Points inside the triangles can all then be accurately located with reference to it. Such triangulation methods were used for accurate large-scale land surveying until the rise of global navigation satellite systems in the 1980s. (Wikipedia).
Trigonometry 4 The Area of a Triangle
Various ways of using trigonometry to determine the area of a triangle.
From playlist Trigonometry
Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. In this video we look at the use of trigonometry with right triangles, solving for both sides and angles. To support tecmath on Patreon: https://www.patreon.com/tecmath
From playlist Trigonometry and Pythagoras
Evaluating Trigonometric Functions of Angles Given a Point on its Terminal Ray
Math Ts: SAVE TIME & have your Trigonometry Ss (formatively) assess their own work! After solving a problem or 2 (like this), send them here: https://www.geogebra.org/m/hK5QfXah .
From playlist Trigonometry: Dynamic Interactives!
Projection of One Vector onto Another Vector
Link: https://www.geogebra.org/m/wjG2RjjZ
From playlist Trigonometry: Dynamic Interactives!
Adding Vectors Geometrically: Dynamic Illustration
Link: https://www.geogebra.org/m/tsBer5An
From playlist Trigonometry: Dynamic Interactives!
Composing Trig & Inverse Trig Functions (2)
Evaluating compositions of #trig & inverse #trig functions: More quick formative assessment via #geogebra: https://www.geogebra.org/m/rwpkkmt7 & https://www.geogebra.org/m/hcw4fr6t #MTBoS #ITeachMath #trigonometry #precalc #math #mathchat
From playlist Trigonometry: Dynamic Interactives!
Using parallax / triangulation to measure large distances in astronomy: from fizzics.org
Notes to support this lesson are here: https://www.fizzics.org/measuring-large-distances-in-astronomy-by-parallax-triangulation/ The measurement of large distances in astronomy is often imprecise. It is better termed the estimation of distance and it is one of the hardest problems facing a
From playlist My Top Videos
Surveying Maths A lesson 7 - Surveying around obstacles using offset and triangulation methods
In this video we talk about some techniques surveyors employ to measure the distance between points when there is an obstacle in the way, using offset and triangulation.
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
Episode 5: Sines And Cosines Part II - Project MATHEMATICS!
Episode 5. Sines and Cosines, Part II: (Trigonometry) This video focuses on trigonometry, with special emphasis on the law of conies and the law of sines, together with applications to The Great Survey of India. The history of surveying instruments is outlined, from Hero’s dioptra to moder
From playlist Courses and Series
Trigonometry and Bearings: Quick Setups
#Trigonometry & #bearings: Set ups. Quick formative assessment: http://ow.ly/BMYe50I7kVs & http://ow.ly/p1JR50I7kVw. #GeoGebra
From playlist Trigonometry: Dynamic Interactives!
Surveying Maths A lesson 9 - Radiation and Traversing Survey Methods
Last lesson we covered the first type of plane table surveying - intersection / triangulation method. In this lesson we will cover the radiation and traversing methods. Next lesson we will do a few math problems on maps created using these methods.
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
Modeling with Trigonometric Functions! (Formative Assessment w/Feedback)
Link: https://www.geogebra.org/m/cuCwguXP BGM: Simeon Smith
From playlist Trigonometry: Dynamic Interactives!
Surveying Maths A lesson 10 - Back (reverse) bearings, scale factor, summary
Final lesson on Surveying! We will learn one more concept (back bearings), and do a practice question summarizing everything we have learned. Thanks for getting through this series of videos.
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
Surveying Maths A lesson 8 - Plane table surveying - Intersection / Triangulation method
In this lesson we talk about a technique that surveyors use to quickly draw a map of an area, using a plane table, sight rule and a piece of paper.
From playlist Maths A / General Course, Grade 11/12, High School, Queensland, Australia
Greg Stevenson: Tensor triangular geometry - Lecture 1
Tensor triangular geometry asks us to think of symmetric monoidal triangulated categories like rings, and in return provides us with an analogue of affine algebraic geometry. With this analogy in mind I'll introduce the general theory: starting with an essentially small symmetric monoidal
From playlist Summer School: Spectral methods in algebra, geometry, and topology
Rade Zivaljevic (6/27/17) Bedlewo: Topological methods in discrete geometry; new developments
Some new applications of the configurations space/test map scheme can be found in Chapter 21 of the latest (third) edition of the Handbook of Discrete and Computational Geometry [2]. In this lecture we focus on some of the new developments which, due to the limitations of space, may have b
From playlist Applied Topology in Będlewo 2017
The Computational Complexity of Geometric Topology Problems - Greg Kuperberg
Greg Kuperberg University of California, Davis September 24, 2012 This talk will be a partial survey of the first questions in the complexity theory of geometric topology problems. What is the complexity, or what are known complexity bounds, for distinguishing n-manifolds for various n? Fo
From playlist Mathematics
Collisionless Dynamics and Smoothed Particle Hydrodynamics, Part 5 - Volker Springel
Collisionless Dynamics and Smoothed Particle Hydrodynamics, Part 5 Volker Springel Max Planck Institute for Astrophysics July 23, 2009
From playlist PiTP 2009
Trigonometry - Vocabulary of trigonometric functions
In this video will cover some of the basic vocabulary that you'll hear when working with trigonometric functions. Specifically we'll cover what is trigonometry, angles, and defining the trigonometric functions as ratios of sides. You'll hear these terms again as we dig deeper into the st
From playlist Trigonometry
Marie Albenque: Geometry of the sign clusters in the infinite Ising-weighted triangulation
HYBRID EVENT Recorded during the meeting "Random Geometry" the January 17, 2022 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics
From playlist Probability and Statistics