WeBWorK Standalone Renderer

Let $P=(0,0,0), Q=(1,-1,-2), R=(-1,1,1)$ .
Find the area of the triangle $PQR$ .
area =

Let $T=(1,-6,5), U=(-2,2,-2), V=(5,6,2)$ .
Find the area of the triangle $TUV$ .
area =

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