🧭 How to Use
Drag NeedleDrag the needle tip to move the compass.
Drag PencilDrag the pencil tip to resize the radius.
Drag HingeDrag the top hinge to draw a circle arc.
LockClick needle tip to lock/unlock compass position & radius.
RulerDrag body to move. Drag shaded ends to rotate.
ProtractorDrag body to move. Drag the end circles to rotate. Slider resizes.
All ToolsAll tools are active simultaneously — ruler, protractor, compass, pencil and line all work together.