1.

The length of the foot of perpendicular drawn from the point P (a, b, c) on z-axis is _____.

Answer»

The coordinates of the foot of perpendicular from the point P (a, b, c) on z-axis is (0, 0,c). The distance between the point P (a, b, c) and (0, 0, c) is √(a2 +b2) .



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