2.25 is close to the square root of what integer?

The square root of 2.25 is approximately 1.5, which is close to the square root of 2.

wrong

Apologies for the incorrect response. The square root of 2.25 is actually 1.5.

wrong again

Apologies for the incorrect response once again. The square root of 2.25 is actually 1.5.