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![Find the lengths of the sides of the triangle \( P Q R \).
\[
P(1,-3,-3), \quad Q(7,0,3), \quad R(10,-6,-3)
\]
\[
|P Q|=
\]
\](https://media.cheggcdn.com/media/bbe/bbe4613e-1d8c-48f2-9c92-0933f2691b5b/phpHMA6Tq)
Expert Answer
Given vertices of a triangle PQR is P=(1,?3,?3)Q=(7,0,3)andR=(10,?6,?3) Therefore PQ=<7?1,0?(?3),3?(?3)>=<6,3,6>|PQ|=?(62+32+62)=?(36+9+36)=?81=9QR=<1