Question 1202e

Vectors I: Basics, Dot and Cross Products

Area of Triangles and Parallelograms

Question

Given the points

{A \left( - 1, 5, 1 \right)}

and

{B \left( 2, - 1, 4 \right),}

what is area of the triangle

{OAB?}

{\textrm{Area } =}