Answer:
4, 49
Explanation:
If you find the square root of 4 it is 2, making it a perfect square.
if you find the square root of 49, it is 7.
finding a perfect square is easy, simply multiply a smaller number by itself, (7x7) or (2x2) and you will find that is the square root, usually, however there are always some exceptions. A number can always have a smaller square root like √10 is 3.16227766