SOLUTION: what formula to use when the question states "For a rectangle where the Perimeter=43cm and the Width=3.4cm, find the length" also "Find the Area formula to find the missing

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Question 73643: what formula to use when the question states
"For a rectangle where the Perimeter=43cm and the Width=3.4cm, find the length"
also
"Find the Area formula to find the missing dimension of the following rectangle"
A=96m2, l=7.2m, w=?

Answer by tazoftroy(22) About Me  (Show Source):
You can put this solution on YOUR website!
The formula to find the length is P=2w%2B2l
So, plug in the value of W to get l=18.1cm
The equation for the second one is simply the length multiplied by the width.
So LW=A or 7.2%28w%29=96
So, w=13.333333... or 40%2F3