Quadrilateral with inscribed circle (vertex construction)
This construction shows a quadrilateral with an inscribed circle.
In this construction the vertices A and C can be moved to change the quadrilateral.
What are some properties of such a quadrilateral?
The spreadsheet shows some lengths. To show other lengths you can input them
into the spreadsheet. For example, if you want distance BQ, type BQ into a spreadsheet cell. If you want a label, put it in quotes. For example, type "BQ =" into a cell.