# Recommend a website for creating geometric figures

For teaching geometry, it could be useful to have a website where one can enter the names of vertices of a polygon, specify which diagonals should be depicted, and specify the measures of certain angles, and have the website generate a credible figure.

What are some likely websites for this purpose, and what are their strengths or weaknesses for use in the classroom or mathematics lab?

• geogebra.org – Aeryk Aug 23 '18 at 19:05
• Make yourself familiar with geogebra's command line. It's quite powerful. – Jasper Aug 23 '18 at 21:01
• Geogebra and Geometer's Sketchpad are some of the ones used most frequently in schools. That said, you may wish to check the more recent extension of Desmos to this area: desmos.com/geometry – Benjamin Dickman Aug 23 '18 at 23:20
• You can definitely use Geogebra without manually dragging. In addition to the command line, the various construction tools can usually be used to create a polygon to your exact specifications without ever dragging anything. – mweiss Aug 24 '18 at 1:41
• I edited this because I think that the comments alone show there are plenty of teaching-oriented answers to what the essential question is here, even if it was formulated somewhat poorly. I hope this would be enough for reconsider the close votes. – kcrisman Oct 10 '19 at 1:49

Fig. 1: Visibility angles at a vertex $$v$$. & Fig. 3.