Find the unit digit of  the square of 85 and 64 .

From the following options choose which natural number is a perfect square.

Find the square of  .

Choose a Pythagorean triplet whose one member is 4.

What will be last digit in the square of 34 ?

The square of 23 is ____________

If a number has 1 or 9 in the unit’s place, then its square ends in ___________.

289 can be express as the sum of first ___________________ consecutive odd numbers.

Check which of the following is not a pythagorean triplet