Flashcard 9 - Applied Mathematics Flashcard Set for the WorkKeys

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The correct answer is:

\[a^{2}-b^{2}\]

Explanation:

All sides of a square are the same length, so the area of the big square is \(a \times a = a^{2}\).
The area of the small square is \(b \times b = b^{2}\).
Subtract the small square from the big square to get the shaded area.

\[a^{2}-b^{2}\]

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