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Which two numbers in the box are perfect squares?

Explain how you know they are perfect squares.
20
125
196
500
625

2 Answers

6 votes

Answer:

Explanation:

It is a perfect square if its square root is an integer. For example, 16 is a perfect square because √16 = 4.

You could find them by squaring integers in order:

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

User Shayaa
by
5.7k points
4 votes

Answer:

625

Explanation:

User Paul McMahon
by
6.0k points