Answer:
The width is [tex]\sqrt{-165}[/tex] or 12.8452326i units long.
Step-by-step explanation:
Well the diagonal and length make a Pythagorean triangle with the width as a or b.
13²+b²=2²
169+b²=4
Subtract 169 from both sides.
b²=-165
Square root both sides
b=[tex]\sqrt{-165}[/tex]≈12.8452326i