Answer
The statement is true.
Work Step by Step
From the given figure, the lengths of the vectors $\mathbf{A}$ and $\mathbf{C}$ are the same, which means that the magnitudes of the vectors $\mathbf{A}$ and $\mathbf{C}$ are the same.
$\left\| \mathbf{A} \right\|=\left\| \mathbf{C} \right\|$
Thus, the statement is true.
