PI

what is

100

half of diameter

radius 

200

length of circle side to side 

diameter 

300

number that equals 3.14

pi

400

r² time pi equals

surface area

500

diameter times pi

circumfrence

problems

100

a circle that has a 2m radius what is the area 

12.56

200

what is circumfrence  of a circle that has 7m diameter

21.98

300

what is area of circle that has 20 m diameter 

314

400

what is circumfrence of circle that has 7 m radius 

43.96

500

what is area of circle that has a 24 m diameter 

452.16