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CK-12 Geometry
by Ck-12 FoundationCK-12 Foundation's Geometry FlexBook covers the following chapters: Basics of Geometry - undefined terms, defined terms, basic postulates of points, lines and planes; distances on a coordinate grid; complementary and supplementary angles; vertical angles; linear pairs and classification of polygons. Reasoning and Proof - inductive reasoning, deductive reasoning, conditional statements, properties of equality and two-column proofs. Parallel and Perpendicular Lines - the parallel line postulate, the perpendicular line postulate, and angles formed by two parallel lines and a non-perpendicular transversal. Congruent Triangles - the Triangle Sum theorem, triangle congruence, the SSS and ASA postulates, the AAS congruence theorem, two-column and flow proofs, the HL congruence theorem, AAA and SSA relationships, isosceles and equilateral triangles. Relationships Within Triangles - the midsegment theorem, the perpendicular bisector theorem, the angle bisector theorem, the concurrency of medians theorem, Napoleon's theorem, and the triangle inequality theorems. Quadrilaterals - interior angles of convex quadrilaterals, classifying quadrilaterals, properties of parallelograms, properties of rhombi, rectangles and squares, and properties of trapezoids. Similarity - ratio and proportion, properties of similar polygons, AAA and AA rules for similar triangles, using SSS and SAS to solve problems about similar triangles, identifying proportional segments in triangles and similarity transformations. Right Triangle Trigonometry - using the Pythagorean theorem when working with right triangles, classification of triangles, the converse of the Pythagorean theorem, using the geometric mean, properties of special right triangles, and trigonometric ratios. Circles - relationships between congruent and similar circles, the equation of a circle, tangent lines, arc measures, chords, inscribed angles, and angles formed by chords, secants and tangents. Perimeter and Area - finding the area of polygons, using scale drawings or models, finding the circumference of a circle, areas of circles and sectors, calculating the areas and perimeters of regular polygons and geometric probability. Transformations - transformations of figures in two-dimensional space including translations, reflections, rotations and dilations.
CK-12 Trigonometry
by Ck-12 FoundationCK-12 Foundation's Trigonometry FlexBook covers the following chapters: Trigonometry and Right Angles - introduction to the trigonometric functions. Circular Functions - introduction to radian measure, circular functions and periodic functions. Trigonometric Identities - confirm, verify and derive various trigonometric identities. Inverse Functions and Trigonometric Equations - inverse functions to trigonometric functions, and will apply the domain, range and quadrants of the six inverse trigonometric functions to evaluate expressions. Triangles and Vectors - introduction to vectors and vector applications. Polar Equations and Complex Numbers - plot points in a polar coordinate system, graph and recognize limaçons and cardiods, and work with real-world applications involving polar coordinates and polar equations.
Motion Mountain: Relativity, Twenty-third edition)
by Christoph SchillerThis book is written for anybody who is curious about nature and motion. Curiosity about how people, animals, things, images and empty space move leads to many adventures.
Motion Mountain: The Adventure of Physics (Vol I. Fall, Flow and Heat)
by Christoph SchillerAn open source textbook
Motion Mountain: The Adventure of Physics Vol. IV
by Christoph SchillerClimbing Motion Mountain up to this point, we completed three legs. We came across Galileo's mechanics (the description of motion for kids), then continued with Einstein's relativity (the description of motion for science-fiction enthusiast), and finally explored Maxwell's electrodynamics (the description of motion for business people).
Motion Mountain: Light, Charges and Brains, Twenty-third edition)
by Christoph SchillerAnswering questions on motion, the book gives an entertaining and mind-twisting introduction into modern physics--one that is surprising and challenging on every page. Starting from everyday life, the adventure provides an overview of the recent results in mechanics, thermodynamics, electrodynamics, relativity, quantum theory, quantum gravity and unification. It is written for undergraduate students and for anybody interested in physics.
Motion Mountain: Pleasure, Technology and Stars)
by Christoph SchillerAn open source physics textbook.