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3D Geometry question

2024 · 29 Jan · Shift 2 · Q39

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JEE Main
Mathematics
3D Geometry
2024 · 29 Jan · Shift 2 · Q39

3D Geometry question

2024 · 29 Jan · Shift 2 · Q39

JEE MainMathematics3D GeometryMCQ+4 / −1

Let

\mathrm{P}(3,2,3), \mathrm{Q}(4,6,2)

and

\mathrm{R}(7,3,2)

be the vertices of

\triangle \mathrm{PQR}

. Then, the angle

\angle \mathrm{QPR}

is

A
$\cos ^{-1}\left(\frac{7}{18}\right)$
B
$\frac{\pi}{6}$
C
$\cos ^{-1}\left(\frac{1}{18}\right)$
D
$\frac{\pi}{3}$

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