The integers that are perfect squares from the options given are: 49, 9, and 225.
What is a Perfect Square?
A perfect square can be described as any integer that is a product of an integer and itself.
An example of an integer that is a perfect square is, 144. The square of 144 is 12 (12 × 12).
In the same vein, the following are perfect squares:
49 = 7 × 7 = √49 = 7
9 = 3 × 3 = √9 = 3
225 = 15 × 15 = √225 = 15
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