The Solution:
Given that the area of the rectangle below si 134 square millimeters.
We are asked to find the width of the given rectangle.
Using the formula for the area of a rectangle, we have
![\begin{gathered} \text{A = L}* W \\ \text{Where} \\ A=\text{area}=134\text{ }mm^2 \\ L=2\operatorname{mm} \\ W=\text{ ?} \end{gathered}]()
Substituting these values in the formula above, we get

Dividing both sides by 2, we get

Therefore, the correct answer is 67 millimeters.