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3 articles trouvés pour ce sujet.
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A cylinder has how many flat surfaces, vertices, and edges? |
2007-01-09 |
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Stacy pose la question :
A cylinder has how many flat surfaces, vertices, and edges?
Diane Hanson and Penny Nom lui répond. |
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How many flat surfaces does a cylinder have? |
2006-02-14 |
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Kimia pose la question :
How many flat surfaces does a cylinder have?
Stephen La Rocque lui répond. |
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Intersection of perpendicular cylindrical surfaces |
2001-07-31 |
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Charlie pose la question :
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.
Chris Fisher lui répond. |
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