In the video, a person is seen using a ruler and a triangle to measure and cut a piece of paper. The person places the triangle on the paper, lines up the ruler with the triangle, and then uses a pen to draw a line along the ruler. The person repeats this process several times, drawing multiple lines on the paper. The person's hands are visible, and they appear to be focused on the task at hand. The paper is a light color, and the ruler is a dark color, providing a clear contrast for the person to see where they are drawing the lines. The triangle is also a dark color, which helps the person to see where the lines intersect. The person's movements are precise and deliberate, indicating that they are experienced in this task.