Lainey is creating centerpieces for a wedding. each centerpiece will be a glass cylinder filled with a mixture of colored sand and glitter. she will cap one end of each cylinder with a circular piece of red felt. to determine the amount of red felt she will need for each glass tube, lainey traced around the end of the glass cylinder. her tracing is shown below. 5.5 cm radius

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

i think the amount would be $140.62