Riya arranges marbles in square patterns. Pattern 1 has 1 marble, Pattern 2 has 4, Pattern 3 has 9, Pattern 4 has 16, and so on, as shown in the figure.

Question

CASE_STUDIESProperties of Square NumbersEstimating Square Root of a Number3 sub-questions

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Which of the following numbers is surely not a perfect square?

What is the unit digit of 267^2?

How many natural numbers lie between 24^2 and 25^2 (not counting these two squares)?

MCQ (Single)Properties of Square Numbers

How many zeros will there be at the end of 7000^2?

21 and 28 are two consecutive triangular numbers. Their sum is

\sqrt{80} lies between which two consecutive whole numbers?