
4.2 Similar Triangles or Not?
... uses a light bulb and a lens within a box. The light rays from the art being copied are collected onto a lens at a single point. The lens then projects the image of the art onto a screen as shown. ...
... uses a light bulb and a lens within a box. The light rays from the art being copied are collected onto a lens at a single point. The lens then projects the image of the art onto a screen as shown. ...
Quadrilaterals
... Find the Slopes of all 4 sides and show that each opposite sides always have the same slope and, therefore, are parallel. Find the lengths of all 4 sides and show that the opposite sides are always the same length and, therefore, are congruent. Find the point of intersection of the diagonals and sho ...
... Find the Slopes of all 4 sides and show that each opposite sides always have the same slope and, therefore, are parallel. Find the lengths of all 4 sides and show that the opposite sides are always the same length and, therefore, are congruent. Find the point of intersection of the diagonals and sho ...
Free Field Approach to 2-Dimensional Conformal Field Theories
... finite dimensional algebra realization, but present instead a completely algebraic approach. We include a discussion of the "twisted Verma modules" of Feigin and Frenkel, 50>which are in some respects the closest finite dimensional analogues, since their corresponding resolutions turn out to be two- ...
... finite dimensional algebra realization, but present instead a completely algebraic approach. We include a discussion of the "twisted Verma modules" of Feigin and Frenkel, 50>which are in some respects the closest finite dimensional analogues, since their corresponding resolutions turn out to be two- ...
CTTI Geometry workshop notes
... The material is motivated by the problem: Prove that a construction taken off the internet for dividing a line segment into n equal pieces actually works. The argument uses most of the important ideas of a Geometry I class. That is, we will develop constructions, properties of parallel lines and qua ...
... The material is motivated by the problem: Prove that a construction taken off the internet for dividing a line segment into n equal pieces actually works. The argument uses most of the important ideas of a Geometry I class. That is, we will develop constructions, properties of parallel lines and qua ...
Geometry - Chapter 18 Similar Triangles Key Concepts
... That is the end of the first semester. It was kind of fun, wasn’t it? Now it’s time to get ready for your semester exam. You should review all of your submissions to be sure you understand how to do ALL the problems. Ask for help if you don’t understand! Review all your theorems, corollaries, postu ...
... That is the end of the first semester. It was kind of fun, wasn’t it? Now it’s time to get ready for your semester exam. You should review all of your submissions to be sure you understand how to do ALL the problems. Ask for help if you don’t understand! Review all your theorems, corollaries, postu ...
Chapter 2: A few introductory remarks on topology, Abstract: November 12, 2014
... transverse intersection of D ′ with C contributes ±1 according to orientation: The orientation of C ′ induces one on D ′ , and C is oriented. This oriented intersection number is one of the definitions of the linking number. From this interpretation L(C, C ′ ) is clearly invariant under continuous d ...
... transverse intersection of D ′ with C contributes ±1 according to orientation: The orientation of C ′ induces one on D ′ , and C is oriented. This oriented intersection number is one of the definitions of the linking number. From this interpretation L(C, C ′ ) is clearly invariant under continuous d ...
Noether's theorem

Noether's (first) theorem states that every differentiable symmetry of the action of a physical system has a corresponding conservation law. The theorem was proven by German mathematician Emmy Noether in 1915 and published in 1918. The action of a physical system is the integral over time of a Lagrangian function (which may or may not be an integral over space of a Lagrangian density function), from which the system's behavior can be determined by the principle of least action.Noether's theorem has become a fundamental tool of modern theoretical physics and the calculus of variations. A generalization of the seminal formulations on constants of motion in Lagrangian and Hamiltonian mechanics (developed in 1788 and 1833, respectively), it does not apply to systems that cannot be modeled with a Lagrangian alone (e.g. systems with a Rayleigh dissipation function). In particular, dissipative systems with continuous symmetries need not have a corresponding conservation law.