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Squares and Square Roots — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSSquares and Square Roots2 Marks
Question
Find the largest number of $2$ digits which is a perfect square.
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Answer

The first three digit number $(100)$ is a perfect square. Its square root is $10.$
The number before $10$ is $9.$
Square of $9 = (9)^2= 81$
Thus, the largest 2 digit number that is a perfect square is $81.$

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