1. A circle has radius of 3cm. How does the circumference of the circle compare to the area?

2.A circular piece of metal has a radius of 3.5 meters. The metal sells for $3.25 per m².


What is the total cost of the circular piece of metal?


Use 3.14 for pi


3.A 12-inch diameter pizza has 22 calories per square inch.


About how many calories are in the entire pizza?


Use 3.14 for pi