Add an icon to draw a square in the toolbar. The program should be able to draw a square with 2-point clicks in the drawing canvas when the square drawing icon is activated in the toolbar. Add an icon ...

This equation will be helpful for us to know when drawing a circle onto the console. We need to isolate and find the "r" variable, so we take the sqrt( (x-h)^2 + (y-k)^2 ). The reason why this is ...