Question 185577
Given {{{Length = 2*Width}}}
Perimeter is 192. It is the sum of the sides. A rectangle has two sets of equal length sides.
{{{Perimeter = 2*Length + 2*Width}}}
{{{Perimeter = 2 *(2*Width) + 2*Width}}}
{{{192 = 2*Width + 2*Width}}}
{{{192 = 6*Width}}}
{{{32 = Width}}}
Length = 2*Width = 64

Check your answer, does 64+64+32+32 = 192?