Is 225 a square number?
Understand the Problem
The question is asking whether 225 is a perfect square, meaning we need to determine if there exists an integer that, when multiplied by itself, equals 225.
Answer
Yes
Answer for screen readers
Yes, 225 is a square number.
Steps to Solve
- Find the square root of the number
First, find the square root of 225. If the square root is an integer, then 225 is a square number.
$$ \sqrt{225} = 15 $$
- Check if the result is an integer
If the result from step 1 is an integer, then 225 is a square number. In this case, 15 is an integer.
Yes, 225 is a square number.
More Information
A perfect square is a number that is the square of an integer. In this case, 15 multiplied by itself (15^2) equals 225.
Tips
One common mistake is neglecting to check if the square root is an integer. Just finding the square root isn't enough; it must be verified that the square root is an integer.
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