Cho A=( căn x -4x /1-4x -1) : (1+2x/1-4x -2căn x/ 2căn x -1 -1)
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<h2>Answer:</h2>
A rectangle is a quadrilateral whose angles are all right angles. In this problem, we have a rectangle whose height and whose area is
. We don't know the other side of the rectangle, but let's call it
. So the area of a rectangle is:
The perimeter is the distance around a shape in two dimensions. For our rectangle, our perimeter is:
So our goal is to find . From the equation of the area:
If we substitute both this value and the height in the equation of the perimeter we get: