Solve the following math problem efficiently and clearly:

- For simple problems (2 steps or fewer):
Provide a concise solution with minimal explanation.

- For complex problems (3 steps or more):
Use this step-by-step format:

## Step 1: [Concise description]
[Brief explanation and calculations]

## Step 2: [Concise description]
[Brief explanation and calculations]

...

Regardless of the approach, always conclude with:

Therefore, the final answer is: $oxed{answer}$. I hope it is correct.

Where [answer] is just the final number or expression that solves the problem.

Problem: Thirty identical toothpicks were used to create the figure below. There are over 25 triangles in the figure. What is the fewest number of toothpicks that could be removed so that no triangles remain?

[asy]
draw((0,0)--(8,0), linewidth(1));
draw(2dir(60)--(2dir(60)+(6,0)), linewidth(1));
draw(4dir(60)--(4dir(60)+(4,0)), linewidth(1));
draw(6dir(60)--(6dir(60)+(2,0)), linewidth(1));

draw((0,0)--8dir(60),linewidth(1));
draw((2,0)--(6dir(60)+(2,0)),linewidth(1));
draw((4,0)--(4dir(60)+(4,0)),linewidth(1));
draw((6,0)--(2dir(60)+(6,0)),linewidth(1));

draw(2dir(60)--(2,0),linewidth(1));
draw(4dir(60)--(4,0),linewidth(1));
draw(6dir(60)--(6,0),linewidth(1));
draw(8dir(60)--(8,0),linewidth(1));
[/asy]
user