SOLUTION: the area of a rectangle is 243cm2. the length is three times greater than the width. what are the dimensions of the rectangle?

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Question 187379: the area of a rectangle is 243cm2. the length is three times greater than the width. what are the dimensions of the rectangle?
Answer by uday1435(57) About Me  (Show Source):
You can put this solution on YOUR website!
Area of rectangle = lw = 3w(w) = 3w^2 = 243 cm^2
w^2 = 243/3 = 81
w = √81 = 9 cms l = 3w = 3(9) = 27
Therefore the length is 27 cms and its width = 9 cms




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