Final answer:
The area of the white (unshaded) region is found by subtracting the area of the square from the area of the circle, which is option (a).
Step-by-step explanation:
The area of the white (unshaded) region would be represented by the area of the circle minus the area of the square, since the white (unshaded) region is what gets left when you take the square out of the circle. This corresponds to option (a) Area of Circle - Area of Square. To understand this, consider that a circle fitting snugly inside a square means the circle's diameter is equal to the side of the square. This equates to the statement, where 'a' represents the side of the square and 'r' the radius of the circle, that a = 2r. Given the area of the square is a2 and the area of the circle is πr2, subtracting these gives the area of the unshaded part. It's important to remember that the area represents a two-dimensional measure, typically in square units, such as square meters (m2).