15-2: Trapezoids Objectives: To discover and use properties of
... If a quadrilateral is a trapezoid, then the consecutive angles between the bases are supplementary. C B y ...
... If a quadrilateral is a trapezoid, then the consecutive angles between the bases are supplementary. C B y ...
Congruence of triangles
... In order to prove that two triangles are congruent, it is not always necessary to show that all the six corresponding parts are equal. If certain basic requirements are met the triangles are said to be congruent. These basic criteria are embodied in the five postulates given below. SSS Postulate If ...
... In order to prove that two triangles are congruent, it is not always necessary to show that all the six corresponding parts are equal. If certain basic requirements are met the triangles are said to be congruent. These basic criteria are embodied in the five postulates given below. SSS Postulate If ...
0616geo
... 31 In the diagram below, radius OA is drawn in circle O. Using a compass and a straightedge, construct a line tangent to circle O at point A. [Leave all construction marks.] ...
... 31 In the diagram below, radius OA is drawn in circle O. Using a compass and a straightedge, construct a line tangent to circle O at point A. [Leave all construction marks.] ...
Geometry Policy - Churchfields Junior School
... Mathematical Vocabulary Children need to acquire appropriate vocabulary so that they can participate in the activities and lessons that are part of classroom life. There is, however, an even more important reason: mathematical language is crucial to children’s development of thinking. If children do ...
... Mathematical Vocabulary Children need to acquire appropriate vocabulary so that they can participate in the activities and lessons that are part of classroom life. There is, however, an even more important reason: mathematical language is crucial to children’s development of thinking. If children do ...
Part 1 - Piscataway High School
... 1) Given the statement: “If two lines are cut by a transversal so that the corresponding angles are congruent, then the lines are parallel.” What is true about the statement and its converse? A. The statement and its converse are both true. B. The statement and its converse are both false. C. The st ...
... 1) Given the statement: “If two lines are cut by a transversal so that the corresponding angles are congruent, then the lines are parallel.” What is true about the statement and its converse? A. The statement and its converse are both true. B. The statement and its converse are both false. C. The st ...
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.)