# Investigating a Circumscribed Circle about a Triangle

The applet below shows a circle circumscribed about triangle

*ABC*with circumcenter at*. Recall that the***J***circumcenter*is the point of concurrency of perpendicular bisector of all three sides of a triangle. Drag any of the vertices of triangle*ABC*. When do you observe point J to be inside or outside the triangle, or lying on a side of the triangle? Write down all other observations you may have.## New Resources

## Discover Resources

Download our apps here: