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Ilia_Sergeevich [38]
3 years ago
14

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

Mathematics
2 answers:
enot [183]3 years ago
8 0
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




stepladder [879]3 years ago
6 0
100 = 10 * 10 = 10^2
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