Question

find the greatest number of four digits which is a perfect square​

Answer 1

Answer:

9801 is the perfect square

Step-by-step explanation:

it is your answer

Answer 2

$9999 \: is \: largest \: 4 \: digit \: number\: and \: {100}^{2} is \: 10000 \: or \: 1 \: greater \: than \: the \: largest \: 4 \: digit \: number. \: this \: means \: that \: the \: closest \: square \: root \: of \: the \: largest \: perfect \: is \: most \: likely \: 99. \: so \: {99}^{2} (9801) \: is \: the \: largest \: perfect \: square \: of \: four \: digits. \:$