Question

Which of the following is a perfect square?

A. 127
B. 100
C. 13
D. 102

Answer 1

The answer is B all of the perfect squares are1, 4, 9, 16, 25, 36, 49, 64, 81, 100

Answer 2

A perfect square is in the form x^2

We can find the perfect square by taking the square root of each number. The number that reduces to a whole number when the square root is taken is your answer.

sqrt(100) = 10 so B. 100 is your answer.