The red ribbon is 18.84 decimeters long. Cut 2 / 3 of it to make a round prop. What is the radius of the prop

The red ribbon is 18.84 decimeters long. Cut 2 / 3 of it to make a round prop. What is the radius of the prop

Circumference of circle: 18.84x2/3 = 12.56 (decimeter)
Diameter of circle: 12.56 △ 3.14 = 4 (decimeter)
The radius of this prop is: 4 △ 2 = 2 (decimeter)