
Congruent Triangles Graphic Organizer
... size. All corresponding angles are equal and corresponding sides are proportional. Geometric Transformations Isometries DilationTranslation, Reflection, Rotation Transformation that changes the size of a figure, but not the shape. (x, y) (kx, ky) k is called the scale factor. Proving Triangles Congr ...
... size. All corresponding angles are equal and corresponding sides are proportional. Geometric Transformations Isometries DilationTranslation, Reflection, Rotation Transformation that changes the size of a figure, but not the shape. (x, y) (kx, ky) k is called the scale factor. Proving Triangles Congr ...
Geometry Unit #4 (polygon congruence, triangle congruence) G.CO
... Triangle BAC and triangle CDB share side _____. Triangle MBR and triangle FBH share angle _____. Triangle GSL and triangle GQL share side _____. ...
... Triangle BAC and triangle CDB share side _____. Triangle MBR and triangle FBH share angle _____. Triangle GSL and triangle GQL share side _____. ...
A Review of Four High-School Mathematics Programs
... needed to solve it. A non-holistic problem, on the other hand, is one which is broken down into small parts, each of which attends to one or two isolated elements. Often each of such parts is a one-step problem. The programs were examined as to whether their instructional units include a relatively ...
... needed to solve it. A non-holistic problem, on the other hand, is one which is broken down into small parts, each of which attends to one or two isolated elements. Often each of such parts is a one-step problem. The programs were examined as to whether their instructional units include a relatively ...
History of geometry

Geometry (from the Ancient Greek: γεωμετρία; geo- ""earth"", -metron ""measurement"") arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers (arithmetic).Classic geometry was focused in compass and straightedge constructions. Geometry was revolutionized by Euclid, who introduced mathematical rigor and the axiomatic method still in use today. His book, The Elements is widely considered the most influential textbook of all time, and was known to all educated people in the West until the middle of the 20th century.In modern times, geometric concepts have been generalized to a high level of abstraction and complexity, and have been subjected to the methods of calculus and abstract algebra, so that many modern branches of the field are barely recognizable as the descendants of early geometry. (See Areas of mathematics and Algebraic geometry.)