Challenging Problems in Geometry PDF Download
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Author: Alfred S. Posamentier
Publisher: Courier Corporation
ISBN: 0486134865
Category : Mathematics
Languages : en
Pages : 275
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Book Description
Collection of nearly 200 unusual problems dealing with congruence and parallelism, the Pythagorean theorem, circles, area relationships, Ptolemy and the cyclic quadrilateral, collinearity and concurrency and more. Arranged in order of difficulty. Detailed solutions.
Author: Alfred S. Posamentier
Publisher: Courier Corporation
ISBN: 0486134865
Category : Mathematics
Languages : en
Pages : 275
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Book Description
Collection of nearly 200 unusual problems dealing with congruence and parallelism, the Pythagorean theorem, circles, area relationships, Ptolemy and the cyclic quadrilateral, collinearity and concurrency and more. Arranged in order of difficulty. Detailed solutions.
Author: Hilary Jacobs Hendel
Publisher: Random House
ISBN: 0399588140
Category : Psychology
Languages : en
Pages : 322
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Book Description
Fascinating patient stories and dynamic exercises help you connect to healing emotions, ease anxiety and depression, and discover your authentic self. Sara suffered a debilitating fear of asserting herself. Spencer experienced crippling social anxiety. Bonnie was shut down, disconnected from her feelings. These patients all came to psychotherapist Hilary Jacobs Hendel seeking treatment for depression, but in fact none of them were chemically depressed. Rather, Jacobs Hendel found that they’d all experienced traumas in their youth that caused them to put up emotional defenses that masqueraded as symptoms of depression. Jacobs Hendel led these patients and others toward lives newly capable of joy and fulfillment through an empathic and effective therapeutic approach that draws on the latest science about the healing power of our emotions. Whereas conventional therapy encourages patients to talk through past events that may trigger anxiety and depression, accelerated experiential dynamic psychotherapy (AEDP), the method practiced by Jacobs Hendel and pioneered by Diana Fosha, PhD, teaches us to identify the defenses and inhibitory emotions (shame, guilt, and anxiety) that block core emotions (anger, sadness, fear, disgust, joy, excitement, and sexual excitement). Fully experiencing core emotions allows us to enter an openhearted state where we are calm, curious, connected, compassionate, confident, courageous, and clear. In It’s Not Always Depression, Jacobs Hendel shares a unique and pragmatic tool called the Change Triangle—a guide to carry you from a place of disconnection back to your true self. In these pages, she teaches lay readers and helping professionals alike • why all emotions—even the most painful—have value. • how to identify emotions and the defenses we put up against them. • how to get to the root of anxiety—the most common mental illness of our time. • how to have compassion for the child you were and the adult you are. Jacobs Hendel provides navigational tools, body and thought exercises, candid personal anecdotes, and profound insights gleaned from her patients’ remarkable breakthroughs. She shows us how to work the Change Triangle in our everyday lives and chart a deeply personal, powerful, and hopeful course to psychological well-being and emotional engagement.
Author: Nathan Altshiller-Court
Publisher: Dover Publications
ISBN: 9780486788470
Category :
Languages : en
Pages : 336
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Book Description
The standard university-level text for decades, this volume offers exercises in construction problems, harmonic division, circle and triangle geometry, and other areas. 1952 edition, revised and enlarged by the author.
Author: Evan Chen
Publisher: American Mathematical Soc.
ISBN: 1470466201
Category : Education
Languages : en
Pages : 311
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Book Description
This is a challenging problem-solving book in Euclidean geometry, assuming nothing of the reader other than a good deal of courage. Topics covered included cyclic quadrilaterals, power of a point, homothety, triangle centers; along the way the reader will meet such classical gems as the nine-point circle, the Simson line, the symmedian and the mixtilinear incircle, as well as the theorems of Euler, Ceva, Menelaus, and Pascal. Another part is dedicated to the use of complex numbers and barycentric coordinates, granting the reader both a traditional and computational viewpoint of the material. The final part consists of some more advanced topics, such as inversion in the plane, the cross ratio and projective transformations, and the theory of the complete quadrilateral. The exposition is friendly and relaxed, and accompanied by over 300 beautifully drawn figures. The emphasis of this book is placed squarely on the problems. Each chapter contains carefully chosen worked examples, which explain not only the solutions to the problems but also describe in close detail how one would invent the solution to begin with. The text contains a selection of 300 practice problems of varying difficulty from contests around the world, with extensive hints and selected solutions. This book is especially suitable for students preparing for national or international mathematical olympiads or for teachers looking for a text for an honor class.
Author: Nick Turse
Publisher: Macmillan + ORM
ISBN: 1429941634
Category : Political Science
Languages : en
Pages : 165
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Book Description
A stunning breakdown of the modern military-industrial complex—an omnipresent, hidden-in-plain-sight system of systems that penetrates all our lives. From iPods to Starbucks to Oakley sunglasses, national security expert Nick Turse explores the Pentagon’s little-noticed contacts (and contracts) with the products and companies that now form the fabric of America. He investigates the remarkable range of military incursions into the civilian world: the Pentagon’s collaborations with Hollywood filmmakers; its outlandish schemes to weaponize the wild kingdom; its joint ventures with Marvel Comics and Nascar, and he spotlights the disturbing way in which the military, desperate for fresh recruits, has tapped into the online world by “friending” young people on social networks. A striking vision of a brave new world of remote-controlled rats and super-soldiers who need no sleep, The Complex will change our understanding of the militarization of America. We are a long way from Eisenhower’s military-industrial complex: this is the essential book for understanding its twenty-first-century progeny. “With a combination of wit and number-crunching, Turse gives a multidimensional picture of the biggest elephant in every room: the Pentagon.” —Foreign Policy in Focus “A brilliant exposé of the Pentagon’s pervasive influence in our lives.” —Chalmers Johnson, author of the Blowback Trilogy “A deeply disturbing audit of the Pentagon’s influence on American life. . . . If Nick Turse is right, The Matrix may be just around the corner.” —Mike Davis, author of Buda’s Wagon: A Brief History of the Car Bomb
Author: Edmond John
Publisher: AuthorHouse
ISBN: 1438921985
Category :
Languages : en
Pages : 358
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Book Description
Author: David Von Drehle
Publisher: Grove Press
ISBN: 9780802141514
Category : Business & Economics
Languages : en
Pages : 372
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Book Description
Describes the 1911 fire that destroyed the Triangle Shirtwaist factory in New York's Greenwich Village, the deaths of 146 workers in the fire, and the implications of the catastrophe for twentieth-century politics and labor relations.
Author: Katharine Weber
Publisher: Macmillan + ORM
ISBN: 1429994754
Category : Fiction
Languages : en
Pages : 255
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Book Description
Esther Gottesfeld is the last living survivor of the notorious 1911 Triangle Shirtwaist fire and has told her story countless times in the span of her lifetime. Even so, her death at the age of 106 leaves unanswered many questions about what happened that fateful day. How did she manage to survive the fire when at least 146 workers, most of them women, her sister and fiancé among them, burned or jumped to their deaths from the sweatshop inferno? Are the discrepancies in her various accounts over the years just ordinary human fallacy, or is there a hidden story in Esther's recollections of that terrible day? Esther's granddaughter Rebecca Gottesfeld, with her partner George Botkin, an ingenious composer, seek to unravel the facts of the matter while Ruth Zion, a zealous feminist historian of the fire, bores in on them with her own mole-like agenda. A brilliant, haunting novel about one of the most terrible tragedies in early-twentieth-century America, Triangle forces us to consider how we tell our stories, how we hear them, and how history is forged from unverifiable truths.
Author: Lisa Earle McLeod
Publisher: Penguin
ISBN: 1101171472
Category : Family & Relationships
Languages : en
Pages : 174
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Book Description
"A must-read for anyone who wants to be more successful." -Keith Ferrazzi, author of #1 New York Times bestseller Who's Got Your Back This engaging and eye-opening book presents a bold model for rising above either/or thinking, recasting the debate on everything from sex and politics to business and religion. With refreshing wit and honesty, business consultant and columnist Lisa McLeod reveals why most of what we've been told about conflict resolution and compromise is wrong-and why the answers to even the most complex problems are closer at hand than we might think. A rare combination of personal insight, business wisdom, and humor, The Triangle of Truth is a just-in-time read for anyone who is tired of the arguments, angst, and stalemates and is ready for real solutions to our problems, large and small.
Author: Norman Reid
Publisher: Royal Society of Chemistry
ISBN: 183916168X
Category : Education
Languages : en
Pages : 209
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Book Description
Chemistry is often seen as a difficult subject to understand. This book focusses on the triangle model that Alex H. Johnstone developed in the early 1980s. The model has been applied in almost every area of education in chemistry at all stages of learning.
