How to draw line segments with constant ratio using geometric sketchpad

php editor Apple summarized the operation method of drawing a line segment with a constant ratio in the geometric sketchpad. First, use the Artboard tool to draw two line segments, then select one of the segments and adjust its length. Next, select another line segment, hold down the Shift key and drag until the proportions of the two line segments meet your needs. Through this simple operation, you can easily draw line segments with constant ratios on the geometric sketchpad.

Assume that the ratio of the two line segments is 1:1.2, the specific drawing operations are as follows:

When opening the geometric drawing board, select the [Line Segment Tool] on the left sidebar to draw any line segment on the drawing board AB, and click the [Measure] menu in the upper menu bar, select the [Length] command from its drop-down option, and measure the length of line segment AB.

Create a new calculation. Click the [Data] menu in the upper menu bar, select the [Calculate] command in the drop-down option, and in the pop-up dialog box, use the mouse to click [The length of the measured line segment AB, ×, 1.2], and then click OK to get a calculation value.

Construct a circle. Select the [Point Tool] to draw a point arbitrarily in the blank area of ​​the drawing board. Select only this point and the calculation result. Click the [Construct] menu on the upper menu bar. Select the [Construct a Circle with Center and Radius] command from the pop-up drop-down option, thus constructing A circle is formed as shown in the figure.

Construct any radius on the circle, which is the required second line segment. Select the circle and execute the Hide command. At this time, you also find that the second line segment can move with the center of the circle and change direction with the points on the circle.

The above is the detailed content of How to draw line segments with constant ratio using geometric sketchpad. For more information, please follow other related articles on the PHP Chinese website!