3D Geometry
Volume
MMTS_Full_Test_08
Grade 12
Question:
Three mutually perpendicular lines have direction ratios $(1,1,0)$, $(1,0,1)$, $(0,1,1)$ and pass through $(1,0,1)$, $(1,1,0)$, $(0,1,1)$ respectively. The volume of the tetrahedron formed by them and the plane $x+y+z=1$ is $V$. Find $16V^2$.
Step-by-Step Solution
Key Concept: Find vertices of tetrahedron; compute volume
$16V^2=75$.
Correct Answer: 75