Question

Label the diagram with correct length and width.

Answer 1

Answer:

the width is 7cm and the length is 14cm.

Step-by-step explanation:

you make an equation using the perimeter as what your expression is equal to. with that you would have 42=length+length+width+width. We know that the length is equal to 2 times the width so we can change that to 2(width). Our equation would then be 42=2(width)+2(width)+width+width. Now we can combine like terms to get 42=6(width). You then divide both sides by 6 in order to find w, or the width. 42/6=7. So 7=width. Lastly, you multiple 7 by 2 because you know the length is 2 times the width, which would mean length=14. I hope this helped!!