Polylines are continuous lines that are made up from multiple straight line segments. They can be useful in your Google Drawings, especially for such things as layout diagrams, process flows and schematics.
To create a Polyilne, select the Polyline option from the toolbar drop-down for line types:
Click at your chosen start point to begin drawing a segment of your polyline, and then click once to end each segment and begin the next segment.
At any time, you can cancel your Polyline and go back to selection mode by pressing the Escape key.
When you’ve finished, double click to complete the Polyline.
You can go back to edit your Polyline by double-clicking on it; the vertices will be highlighted with small dots that you can drag and drop to move their positions:
To draw a curved line, select Curve from the lines menu:
This works pretty much like a polyline, except that when you click to add each vertex, the application will do its best to draw a smooth line that intersects all the vertices: