If the length of the enclosure for the pancake tortoise is greater than the height, and the volume of the enclosure is expressed in terms of the width w, then we can use the formula for the volume of a rectangular prism: V = lwh, where l is the length, w is the width, and h is the height.
If we know that l > h, then we can rewrite the formula as V = h*w*(l/h)*w, which simplifies to V = (l/h)*h*w^2 = lw^2/h.
Therefore, the volume of the enclosure is directly proportional to the width squared and inversely proportional to the height.