JEE MATHEMATICS MCQ: 3D GEOMETRY SYSTEM

1 Easy

1 of 1

Analyzing +4 | -1

In a three dimensional co-ordinate system,

P, Q

and

R

are images of a point

A(a, b, c)

in the

x y, y z

and

z x

planes, respectively. If

G

is the centroid of triangle

P Q R

, then area of triangle

A O G

is (

O

is the origin)

View answer and explanation

Correct option: A

Option A (0) is correct because the centroid G lies on the line OA, making the area of triangle AOG zero.

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\frac{x-1}{1}=\frac{2-y}{2}, z=3