The perimeter of a square whose two sides have equations $\frac{x-1}{2}=\frac{y+2}{3}=\frac{z-3}{4}$ and $\frac{x}{2}=\frac{y-1}{3}=\frac{z+1}{4}$ is
- A$\frac{\sqrt{673}}{\sqrt{29}}$ units
- B$\frac{4 \sqrt{673}}{\sqrt{29}}$ units
- C$\frac{4 \sqrt{573}}{\sqrt{29}}$ units
- D$\frac{4}{\sqrt{29}}$ units
✓ Correct answer: B
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