AriannaBunnyB
AriannaBunnyB AriannaBunnyB
  • 04-04-2018
  • Mathematics
contestada

Help with 21 show work plz

Help with 21 show work plz class=

Respuesta :

sklark sklark
  • 04-04-2018
Since length is 3 more than the width, you can say that l= w + 3.

Part A) Area is length time width, so you would get (w + 3) × w this can be simplified to w²+3w

Part B) Perimeter is all of the sides added together, or 2l+ 2w. This gets you 2(w +3) + 2w, and this can be simplified to 4w+6

If you need any further explanation, just let me know :)
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