Z A Consider the tetrahedron ABCD with vertex A at the origin as shown: (a) Find the equation of the line through vertices B and D: D(6,0,0) X Determine the face angle where edges BD and BC meet, to the nearest degree. Find the scalar equation of the plane containing vertices B, C and D: (b) B(0,0,3) ---->y ->y C(0,4,0)

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