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1 vote
Which of the following is a perfect square?
A 127
B 100
C 13
D 102

User Nauman Ash
by
7.5k points

2 Answers

6 votes
100 = 10 * 10 = 10^2
User Jonas Fagundes
by
8.0k points
3 votes
Answer: 100.

Justification.

A perfect square is a number that can be expressed and the square of an integer.

In this case, 10^2 = 100, so 100 is a perfect square.

It is a good idea to memorize the first perfect squares. I recommend you memorize the squares of the numbers from 1 to 14. That will help you a lot in some standardized tests,which requires to answer some quesitons fast:


1^2=1 2^2=4 3^2=9 4^2=16 5^2=25 6^2=36 7^2=49 8^2=64 9^2=81 10^2=100 11^2=121 12^2=144 13^2=169 14^2=196




User Alexis Vandepitte
by
8.2k points

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