80 Communiquer Chercher Modéliser - Communiquer x denotes a number greater than 3. Here is a cuboid whose dimensions are given in cm. x-3,largeur 2x la hauteur et 3x la longueur a. Express as a function of the total area o, in cm², of its six faces. b. A rectangle with one side equal to x has an area equal to half of . Find its other side.
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