Final answer:
The number of elements in an array dimension can represent an area; for 100 elements, it is 100 square meters. The side length for a square of this area is 10 meters.
Step-by-step explanation:
When contemplating the size of an array in a computer programming context, determining the number of elements in a specific dimension of an array varies depending on the language being used. In most programming environments, an array's size is set when the array is created and cannot be changed dynamically. As it relates to calculating an area in meters and providing a side length for a square with the same area, this involves simple mathematical computations once the total number of elements (corresponding to the area) is known.
For example, if an array is to represent a grid or a two-dimensional area where the number of elements equates to the area in square meters, and you know the array has 100 elements, you would say the area it represents is 100 square meters. Further, to express side length for a square with the same area, since the area of a square is given by the formula side length2, you would take the square root of the area. Consequently, the side length of a square that has an area of 100 square meters is 10 meters on each side.