The equation or formula for the expression is written as A = L²
A square is a 2 dimensional shape with 4 sides and angles. The interior angle of a square are 90 degrees each.
Given the statement that "the area a of A square is the length of a side L squared", the equation or formula for the expression is written as:
A = L²
where "²" is termed as squared
Learn more on area of square here: https://brainly.com/question/25092270
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