Question

Show that 1089 is a perfect square​

Answer 1

Answer:

Yes.

Step-by-step explanation:

A number that is a perfect square never ends in 2, 3, 7 or 8. If your number ends in any of those numbers, you can stop here because your number is not a perfect square.

Obtain the digital root of the number. The digital root essentially is the sum of all of the digits. If you're lost, don't worry, we'll go over each step in more detail below.

All possible numbers that are a perfect square have a digital root of 1, 4, 7, 9.

Hence, the number 1,089 is a perfect square.

Hope this will help you.

Priyanka Dalvi here.