Question 1204c

Vectors I: Basics, Dot and Cross Products
Perpendicular Distances

Question

Given the points A(1,−4,−8){A \left( 1, - 4, - 8 \right)} and B(12,0,−5),{B \left( 12, 0, - 5 \right),} what is the perpendicular distance from the point A{A} to the line OB?{OB?}

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