Q9 of 45 Page 1

Find the length of the perpendicular drawn from the origin to the plane 2x – 3y + 6z + 21 = 0.

Length of perpendicular from a point (x1,y1,z1) to a plane


ax + by + cz + d = 0 is given by –


p =


∴ length of perpendicular from (0, 0, 0) to plane


2x – 3y + 6z + 21 = 0 is given by-


p =


∴ length of the perpendicular drawn from the origin to the plane 2x – 3y + 6z + 21 = 0 is 3 units


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