Objects of different shapes have different mass-to-area ratios.
For two similar objects, the volume is proportional to the third power of its length, but the surface area proportional to the second power of its length. For example, doubling the length would give you 8 times as much volume, and 4 times as much area.
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To obtain the ratio of surface area to volume, divide the surface area by the volume.
surface area/ volume. wider range of surface area to volume is better for cells.
Volume=area * length of that surface
surface area divided by volume
Think of surface area as your skin and volume as all the contents inside your body. So they relate because surface area can hold volume or volume could be inside the surface area.