Math CentralQuandaries & Queries


Question from Hayley, a student:

A rectangles width is exactly twice its length. The area of the rectangle is 450 square feet. What are the length
and width of the rectangle?

Hi Hayley,

Draw a diagram.


I let the length of the rectangle be $L$ feet then the width must be $2 L$ feet. The area of a rectangle is the length times the width so $2 L \times L = 450$ square feet. Solve for $L.$


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