1. Which of the following are perfect squares?
a) 1234 b) 144 c) 55555 d) 441
2. express the following as the sum of consecutive natural numbers.
a) 153 b) 172 c) 252 d) 132
please give me answer with formula
it's very urgent please
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Answer:
( 1 ) = 144 is a perfect square of 12
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