From the discussion of a way to measure the area of a cat, without member damage and bullying the beast:

Take any empty box and place it in the center of the room. After a while, the cat will take the box. Visually assess the cat’s occupied space. Consistently adjusting the outpouring of the cat or the underfill of the box can get a box with the perfect cat filling. Measuring the interior volume and area of the box will not be difficult.: )
Raw technique, the cat begins to approach the spherical)))