Triangle Area Vector Sides (Jee Mains) | ExamDuo
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Scalar and Vector Products
Hard
Triangle Area Vector Sides
Let
ABC
be a triangle of area
15
√
2
and the vectors
→
A
B
=
^
i
+
2
^
j
−
7
^
k
,
→
B
C
=
a
^
i
+
b
^
j
+
c
^
k
and
→
AC
=
6
^
i
+
d
^
j
−
2
^
k
,
d
>
0
. Then the square of the length of the largest side of the triangle
ABC
is
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