  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: surfaces   start over

3 items are filed under this topic.    Page1/1            A cylinder has how many flat surfaces, vertices, and edges? 2007-01-09 From Stacy:A cylinder has how many flat surfaces, vertices, and edges?Answered by Diane Hanson and Penny Nom.     How many flat surfaces does a cylinder have? 2006-02-14 From Kimia:How many flat surfaces does a cylinder have?Answered by Stephen La Rocque.     Intersection of perpendicular cylindrical surfaces 2001-07-31 From Charlie:Please consider two right circular cylinders, perpendicular one to the other, and of unlike radii in a 3 dimensional Cartesian space with mutually perpendicular x,y,z axes. If one cylinder is centered on the y axis with radius ra, and the other on the z axis with radius rb, then the expression for the first surface would be x2 + z2 = ra2, y = any number. Likewise, the second cylinder's surface would be x2 + y2 = rb2, z = any number. It is my intent to define the curve at the intersection of these two cylindrical surfaces. From sketching the conditions it appears that this intersection resembles an ellipse folded about its minor axis. Answered by Chris Fisher.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français