T 2 All The Help With The Dc Ko, T Thank You: D?
Lesson 1: for d: x = (y-2) / -1 = z
d ': (x-2) / 2 = y-3 = (z +5) / -1
write pt plane (P) passing through d and perpendicular to the d '
article 2: the tetrahedron ABCD is the base ABC is a triangle in A, AB = a, AC = a.can3, DA = DB = DC. DBC knows that the square-triangle, the ABCD volume and the distance from B to mp (DAC)
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