Determine wheater there is a perfect square that ends in 9 distinct digits.

Does any perfect square end in 2?

Determine whether the following are perfect squares. 484

Three digit numbers in which the middle one is a perfect square are formed using the digits 1 to 9 Their sum is

Three digit numbers in which the middle one is a perfect square are formed using the digits 1 to 9 Their sum is

Find the least perfect square with four digits.

Relation between the digit of a perfect square and its square root

A three digit perfect square is such that if it is viewed upside down,the number seen is also a perfect square. What is the number? (Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9.)