Final answer:
To divide a line into equal parts, mark the desired number of equal parts along the line and connect each mark with the endpoints of the line.
Step-by-step explanation:
To divide a line into equal parts, we can use a ruler and mark the desired number of equal parts along the line. Then, we draw straight lines to connect each mark with the endpoints of the line. These straight lines will divide the line into equal parts. This process is often used in geometry to create segments of equal length on a line.