True. The statement "square roots of perfect squares are rational numbers" is true.
A perfect square is a number that can be expressed as the square of an integer. For example, 9, 16, and 25 are perfect squares because they can be written as 3^2, 4^2, and 5^2, respectively.
The square root of a perfect square will be the integer that, when squared, gives the original perfect square. For example, the square root of 9 is 3, the square root of 16 is 4, and the square root of 25 is 5.
Rational numbers are numbers that can be expressed as a ratio of two integers. In this case, the square roots of perfect squares can be expressed as a ratio of the integer square root to 1.
Therefore, the square roots of perfect squares are rational numbers.