2.4. From sticks of the same length, a row of 800 hexagons was laid out as shown in the figure. How many sticks were used in total?



Answer, option 1. 5001.

Answer, option 2. 2501.

Answer, option 3. 3001.

Answer, option 4. 4001.
Solution option 1. In the first hexagon, there are 6 sticks. Building each subsequent hexagon adds 5 sticks. In total, it will be $6+5 \cdot 999=5001$ sticks.