part of the circle
improper factions
addition
subtraction
division
100

what is the line that doesn't touch the center

chord

100

18/6

3

100

50000+60000

110000


100

500-200

300

100

900÷1

900

200

what is the perimeter around a circle called

circumference

200

27/8

3 3/8

200

20+70

90

200

600-700

-100

200

0÷1000000000000000000000

0

300

a line that ends when it HITS the center 

(half of the diameter)

radius

300

12/3

4


300

90+90

180

300

43-100

57

300

50÷10

5

400

goes THROUGH the center and touches both ends of the circle

diameter

400

21/7

3

400

200+200

400

400

twenty plus ninety

110

400

6000÷6

1000

500

what is the magic number for Pi

3.14

500

50/10

5

500

1m+1m

2m

500

60+140

200

500

90÷7

12.85714