
Unit 1 – Transformations Terms and Definitions
... and extends in two directions but has no width or thickness. It is represented and named by any two distinct points that lie on it. A plane has length and width but no thickness. It is a flat surface that extends infinitely along its length and width. It can be named with a script capital letter, su ...
... and extends in two directions but has no width or thickness. It is represented and named by any two distinct points that lie on it. A plane has length and width but no thickness. It is a flat surface that extends infinitely along its length and width. It can be named with a script capital letter, su ...
Reteach 7.3
... triangle are proportional to the three corresponding sides of another triangle, then the triangles are similar. If two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar. ...
... triangle are proportional to the three corresponding sides of another triangle, then the triangles are similar. If two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar. ...
Activity 8.4.2 Area of a Circle from Regular Polygons
... Activity 8.4.2 Area of a Circle from Regular Polygons In his book, Journey through Genius (1991), William Dunham described Archimedes of Syracuse (287 – 212 BC) as “a much revered, somewhat eccentric genius who dominated the mathematical landscape of the classical world.” (p.84) Among his multiple r ...
... Activity 8.4.2 Area of a Circle from Regular Polygons In his book, Journey through Genius (1991), William Dunham described Archimedes of Syracuse (287 – 212 BC) as “a much revered, somewhat eccentric genius who dominated the mathematical landscape of the classical world.” (p.84) Among his multiple r ...
Unwrapped Standards: G.CO.3 - Given a rectangle
... G.CO.6 - Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure; given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent. G.CO.7 - Use the definition of congruence in t ...
... G.CO.6 - Use geometric descriptions of rigid motions to transform figures and to predict the effect of a given rigid motion on a given figure; given two figures, use the definition of congruence in terms of rigid motions to decide if they are congruent. G.CO.7 - Use the definition of congruence in t ...
Subject Area Standard Area Grade Level Standard Assessment
... M07.C-G.2.1.1a: Use angle relationships to find the missing angle. ...
... M07.C-G.2.1.1a: Use angle relationships to find the missing angle. ...
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.)