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Mathematics
Mathematics
Problem
Let the image of the point
P
(
1
,
2
,
3
)
P(1, 2, 3)
P
(
1
,
2
,
3
)
in the plane
2
x
−
y
+
z
=
9
2x - y + z = 9
2
x
−
y
+
z
=
9
be
Q
Q
Q
. If the coordinates of the point
R
R
R
are
(
6
,
10
,
7
)
(6, 10, 7)
(
6
,
10
,
7
)
, then the square of the area of the triangle
P
Q
R
PQR
P
QR
is ________. (Main 6th April 1st Shift 2023)
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