Question

find least number of 4 digits which is perfect square. what is square root of this number.​

Answer 1

$\underline{\text{Condition:}}$

$\text{(1) The number is the smallest 4-digit number possible}$

$\text{(2) The number is a perfect square}$

$\underline{\text{To Find:}}$

$\text{The number that fits the above condition}$

$\underline{\text{List the possible smallest 4-digit number :}}$

$\text{Smallest 4-digit number = 1000}$

$\underline{\text{Find the square root and round it up to the next whole number :}}$

$\sqrt{1000} = 31.62$

$\sqrt{1000} \approx 32$

$\underline{\text{Find the number :}}$

$\text{The number = }32^2$

$\text{The number = }1024$

$\boxed {\boxed{ \textbf{Answer: The number is 1024 and its square root is 32} }}$