The true statement is "To square a number, multiply the number by itself" which is the third option.
Remember that we define a square number as a number that is equal to the product of an integer by itself.
So, A*A = B
if A is an integer number, then B is a square number, such that:
√B = √(A*A) = A
Then the true statement is:
"To square a number, multiply the number by itself"
This means that to square A, you will write:
A*A
As we did above.
If you want to learn more about square numbers:
https://brainly.com/question/21694652
#SPJ1