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| − | A '''diagonal''' is a [[line]] drawn between opposite angles of a rectangular [[polygon]]. | + | A '''diagonal''' is a [[line]] drawn between opposite angles of a [[rectangular]] [[polygon]]. |
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| − | [[category:geometry]] | + | The '''diagonal''' of a [[square matrix]] is the entries from the top left corner to the bottom right corner. |
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| | + | [[Category:Plane Geometry]] |
| | + | [[Category:Linear Algebra]] |