How Do You Answer This?

How do you answer this?

  You count the boxes for each number.

To get the radius, you count half of the boxes aligned in each circle.

To get the diameter, you count all the boxes aligned in each circle.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The first number, we count half of the boxes to get the radius. So 4cm or 4m is the answer.

The diameter is 8 since we just times 4 by 2 because we already counted the half of the boxes.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The second number, we count half of the boxes again to get the radius. Since it is an odd number, we use 0.5 so the answer us 5.5

The diameter is 11 since 5.5 times 2 or 5.5 plus 5.5 (to be easier) is equivalent to 11.