Is $10, 24$ and $26$ a Pythagorean triplet?

What would be the possible ones digit of the square root of given natural number?

$6561$

$24336$

What would be the possible ones digit of the square root of given natural number?

$16129$

What would be the possible ones digit of the square root of given natural number?

$160801$

Using repeated subtraction method, find the square root of the following number.

$144$

Find the square root of the following numbers, using repeated subtraction.

$289$

Using repeated subtraction method, find the square root of the following number.

$169$

Using the prime factoriazation method, find which of the following are perfect square numbers:

$676$