Question

give the least number which must be added to 6412 to get a perfect square .also find the square root of the perfect square with explanation​

Answer 1

Answer:

The least no. which must be added to 6412 to make it a perfect square is 149(6561-6412). ... 81*81=6561). Hence you need to add 6561 - 6412 = 149 to 6412 to make it a perfect square.

Step-by-step explanation:

Number given is 6412

when you have even number of digits

then take first two digits and

find their root,

in this case it is 64 so it's root is 8

so root of the above quantity may be 80

but square of 80 is 6400

which is less than 6412,

so let you find the square of 81 which is 6561.

It is less than 6412 by

an amount 6561-6412=149.

So add 149 in 6412 to make it a perfact square.

Answer is 149

I hope it helps you mate...

Answer 2

Answer:

6412 +149 =6561, under root of 6561 =81