Answer
$(4w+8)$ cm
Work Step by Step
$w$ = width of rectangle
$w+4$ = length of rectangle
Perimeter = 2*width+2*length=$2*w+2(w+4)=(4w+8)$ cm
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.