When point P lies outside of the line segment AB, it can divide AB externally as shown in this diagram:
The formulas for external division are as follows:
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Starting in the upper right hand section and moving counter-clockwise: I, II, III, IV. In I, X and Y are both positive. In II, X is negative and Y is positive. In III, X and Y are both negative. In IV, X is positive and Y is negative.
Area of the right section x Length of the lateral edge
Volume of a cuboid = cross-section area times its length
Coordinated geometry was conceived by the French mathematician Rene Descartes.
A sectional team is a small team that has its own roles and responsibility an example of a sectional team is the dog unit.