What is 1 squared?

Answer 1

The answer is most likely 4, but could be 2

If it is written as (1+1)² then it is 4:

1+1 = 2

2^2 = 4

If it is written as 1 + 1² then it is 2:

1 + (1×1) = 2

Answer 2

1 square kilometre is an area equivalent to 1 million square metres.

Answer 3

1

PROOF

12 = 1

1 = 2-1 so this can be rewritten as:

(2-1)2 = 12

Expanded:

22 + (-1)2 - 2 - 2 = 1

4 + (-1)2 - 4 = 1

(-1)2 = 1

Answer 4

1