Explanation:

To find the value of 1801 × 1801, let's square 1801:

- Formula for squaring a number:

$(a+b{)}^2=a^2+2ab+b^2$

For 1801:

- $a=1800$ and $b=1$

- Breakdown of calculation:

- ${1800}^2=3240000$

- $2\times 1800\times 1=3600$

- $1^2=1$

- Adding these values gives:

- $3240000+3600+1=3243601$

- Options:

- Option 1: 3423601

- Option 2: 3243601

- Option 3: 2343601

- Option 4: 3243106