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Question
Numbers like 1, 4, 9, 16, 25, ... are known as ________.
Options:
A .  Perfect cubes
B .  Perfect squares
C .  Irrational Numbers
D .  Decimals
Answer: Option B
:
B
When an integer is multiplied by itself, it results in a perfect square.
When we square integers like 1, 2, 3, 4, 5, ...,we obtain 1, 4, 9, 16, 25, ... .
Hence, the given numbers which are obtained by squaring the integers are known as perfect squares.

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