* how_to_use
 
 Try to move any point on the circle. When you move any point, notice that the percentage figure is reflected on the table located at the right side of the sketch window. Now, try to solve the quizzes by clicking on the frog.
 






* MOVE_OBJECT(Moving a line or a point)

Move the mouse close to any point or any line. If the object starts blinking or changes its color to red, you can move that object by dragging







