MENU
Question -

In the following cases, find the distance of each of the given points from the corresponding given plane.
Point Plane
(a) (0, 0, 0) 3x – 4y + 12 z = 3
(b) (3, -2, 1) 2x – y + 2z + 3 = 0
(c) (2, 3, -5) x + 2y – 2z = 9
(d) (-6, 0, 0) 2x – 3y + 6z – 2 = 0



Answer -

(a) Point Plane

(0, 0, 0) 3x – 4y + 12z = 3

We know that, distanceof point P(x1, y1, z1) from the plane Ax + By+ Cz – D = 0 is given as:

Given point is (0, 0,0) and the plane is 3x – 4y + 12z = 3

= |3/√169|

= 3/13

The distance is 3/13.

(b) Point Plane

(3, -2, 1) 2x – y + 2z+ 3 = 0

We know that, distanceof point P(x1, y1, z1) from the plane Ax + By+ Cz – D = 0 is given as:

Given point is (3, -2,1) and the plane is 2x – y + 2z + 3 = 0

= |13/√9|

= 13/3

The distance is 13/3.

(c) Point Plane

(2, 3, -5) x + 2y – 2z= 9

We know that, distanceof point P(x1, y1, z1) from the plane Ax + By+ Cz – D = 0 is given as:

Given point is (2, 3,-5) and the plane is x + 2y – 2z = 9

= |9/√9|

= 9/3

= 3

The distance is 3.

(d) Point Plane

(-6, 0, 0) 2x – 3y +6z – 2 = 0

We know that, distanceof point P(x1, y1, z1) from the plane Ax + By+ Cz – D = 0 is given as:

Given point is (-6, 0,0) and the plane is 2x – 3y + 6z – 2 = 0

= |14/√49|

= 14/7

= 2

The distance is 2.

Comment(S)

Show all Coment

Leave a Comment

Free - Previous Years Question Papers
Any questions? Ask us!
×