Angle Calculation in 3D Triangle (Jee Mains) | ExamDuo
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3D Line Equations and Skew
Medium
Angle Calculation in 3D Triangle
Let
P
(
3
,
2
,
3
)
,
Q
(
4
,
6
,
2
)
and
R
(
7
,
3
,
2
)
be the vertices of
△
PQR
. Then, the angle
∠
QPR
is
Ask about this question
SELECT ONE OPTION
A
π
6
B
cos
−
1
(
7
18
)
C
cos
−
1
(
1
18
)
D
π
3
Check