Question

Find the square of 54.

Answer 1

Finding the square of the given number

We can find the square of 54 by applying the identity (a + b)² = a² + 2ab + b²

Now, 54 can be written as 50 + 4.

On applying the identity, we get,

54² = (50 + 4)² 

= (50)² + 2(50)(4) + (4)²

= 2500 + 400 + 16 

= 2916

Hence, using an identity, the square of 54 is 2916.

Answer 2

Square of 54 = 54²

= 54 × 54 

= 2916