Question

What is the smallest number that must be added to 1780 to make it a perfect square?

Answer 1

Answer:

Step-by-step explanation

We know that 1780 is not a perfect square as its reminder is 19

This shows that 42 square < than 1780

So now we take the next perfect square 43 square which = 1849

Hence the number to be added = 43 Square - 1780

1849 - 1780 = 69

So the number to be added is 69