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Year 12 Maths Extension 2 Further Work With Vectors

Applications of the Dot Product

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Questions
Question 1
13645

\(\Delta ABC\) has the coordinates \(A(2,{\rm{ }}1,{\rm{ }}0)\), \(B(2,{\rm{ }}2,{\rm{ }}2)\) and \(C(1,{\rm{ }}2,{\rm{ }}0)\). Find the area of \(\Delta ABC\).

A.

\(1.2~\text{u}^2\)

B.

\(1.5~\text{u}^2\)

C.

\(1.6~\text{u}^2\)

D.

\(1.8~\text{u}^2\)

\(1.5~\text{u}^2\)

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