Problema Solution
The width of a rectangle is equal to the suare root of its lenght. if the sum of the width and the lenght is 12cm, find their positive difference
Answer provided by our tutors
*--Considering all rectangles with the same perimeter, the square encloses the greatest area. Proof: Consider a square of dimensions x by x, the area of which is x^2. Adjusting the dimensions by adding a to one side and subtracting a from the other side results in an area of