Dr. Math Introduces Geometry.DR. MATH INTRODUCES GEOMETRY THE MATH FORUM, DREXEL UNIVERSITY Drexel University, at Philadelphia, Pa.; coeducational; founded 1891 by Anthony J. Drexel, opened 1892, chartered 1894 as Drexel Institute of Art, Science, and Industry. It was renamed Drexel Institute of Technology in 1936 and gained university status in 1970. Novice geometry students will find here a wealth of explanations and examples of two-and three-dimensional objects. This guide is based on questions that have been asked and answered by the "Math Doctors" at Drexel university on the Web site www.mathforum.org. For instance, a question about how to find the area of a circle leads to an answer that not only gives the formula, area = [[pi].sup.2] but also explains the logic behind the formula. Other answered queries include: What is a polyhedron polyhedron (pŏl'ēhē`drən), closed solid bounded by plane faces; each face of a polyhedron is a polygon. A cube is a polyhedron bounded by six polygons (in this case squares) meeting at right angles. ? What are lines of symmetry symmetry, generally speaking, a balance or correspondence between various parts of an object; the term symmetry is used both in the arts and in the sciences. ? Why is the area of a triangle different from that of a rectangle or a square? and HOW do you remember the difference between an isosceles triangle and a scalene scalene /sca·lene/ (ska´len) 1. uneven; unequally three-sided. 2. pertaining to one of the scalenus muscles. triangle? Each answer comes with details of the necessary formulas as well as a little history about the field, Wiley, 2004, 182 p., b&w illus., paperback, $14.95. |
|
||||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion