does anyone know how to do compound shapes?

I am not familiar with it, but there are some references here:

http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS253&q=%22compound+shapes%22&btnG=Google+Search

Yes, many people know how to create compound shapes. To create a compound shape, you typically combine two or more basic shapes to form a more complex shape. The process may differ depending on the specific software or context you are working with, such as graphic design software or geometry.

If you are using graphic design software like Adobe Illustrator or Photoshop, here's a general step-by-step guide:

1. Open the software and create a new document.
2. Use the shape tools available in the software (rectangle, ellipse, polygon, etc.) to create the basic shapes you need for your compound shape. You can typically find these tools in the toolbar or in a dedicated panel.
3. Position the basic shapes as desired, making sure they overlap or intersect to form the desired compound shape. You can adjust their sizes, rotation, and other properties as needed.
4. Select all the shapes that you want to combine into a compound shape. You can do this by holding down the Shift key while clicking on each shape or using the selection tool to draw a box around them.
5. Look for a "Combine" or "Merge" option in the software's menu or toolbar. Click on this option to merge the selected shapes into a single compound shape.
6. Depending on the software, you may need to further tweak or refine the compound shape by adjusting its stroke, fill, or other attributes.

If you are working with geometry and want to create compound shapes manually, follow these general steps:

1. Identify the basic shapes (such as rectangles, triangles, and circles) that you want to combine.
2. Determine how these shapes should be combined to create the compound shape. This may involve overlapping, intersecting, or subtracting one shape from another.
3. Use measurements and mathematical operations (such as addition, subtraction, multiplication, or division) to calculate the dimensions and angles of the shapes' edges and vertices.
4. Draw the basic shapes on a piece of paper or using a drawing software, ensuring their dimensions and angles match your calculations.
5. Combine the shapes by aligning and joining their edges as planned. You may need to cut out or overlap certain areas to achieve the desired compound shape.
6. Once you have combined the shapes, you can further refine or decorate the compound shape as desired.

Remember, the specific steps and tools may vary based on the software or context you are working with, so it's important to refer to the documentation or tutorials specific to your software or method of choice.