Which of the following is a perfect square? A 169 B 279 C 154 D 115
2 answers:
Answer: 169.
Justification.
A perfect square is a number that can be expressed and the square of an integer.
It is a good idea to memorize the first perfect squares. I sugest you memorize the squares of the numbers from 1 to 14, it will help you a lot in some standardized tests,which requires to answer some quesitons fast:
Justification.
A perfect square is a number that can be expressed and the square of an integer.
It is a good idea to memorize the first perfect squares. I sugest you memorize the squares of the numbers from 1 to 14, it will help you a lot in some standardized tests,which requires to answer some quesitons fast:
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For demonstration on how to tackle this sort of problem, I'll only work through the case where
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