$\"\"$

The wheel had $\"\"$ equally spaced cars.

The distance between two cars is approximately $\"\"$ .

Since there are 36 equally spaced cars, each car is seperated by $\"\"$ .

The angle between the radius and a line segment connecting consecutive cars is $\"\"$ .

The radius of the wheel is $\"\"$ .

$\"\"$

$\"\"$ .

The diameter of the wheel is $\"\"$ .

$\"\"$

The diameter of the wheel is $\"\"$ .