Answer:
Step-by-step explanation:
lets say l=length and w=width and P=28 and A=46
28=2l+2w
46=l*w
w=46/
28=2(46/w)+2w
28=92/w+2w
28w=92+2w^2
0=2w^2-28w+92
0=w^2-14w+46
0=w^2-14w+49-3
0=(w-7)^2-3
3=(w-7)^2
w-7=[tex]\sqrt[]{3}[/tex]
w=7+[tex]\sqrt[]{3}[/tex]
