What is the best way to include geometry symbols like circle, arc, etc. in Formula?
How do I add the routine geometry symbols like circle, arc, degrees, etc. in Writer Formula? Is there an add-on or extension for this?
so that it turns green 
Please edit your question to improve its clarity. What is the purpose? Usually these symbols appear in a drawing, not in a formula. Give an example of your goal.
Don't forget to mention OS name and LO version.
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