To divide a line into equal segments using a ruler and two triangles, follow these steps:
- Draw the given line and label its endpoints.
- Place one triangle with one edge aligned along the given line.
- Position the second triangle against the first so they can slide together while maintaining a consistent orientation.
- Align the ruler at an angle from one endpoint of the line, choosing an angle that allows for easy measurement.
- Use the ruler to mark equal intervals along the angled line, based on the number of desired segments.
- Slide the triangles together to draw parallel lines from each marked point on the angled line down to the original line.
- Where these lines intersect the original line will be the division points, creating equal segments.

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