Answer:
12) Line segment AB
13) Line segment CD
14) Line segment EF
15) Line segment GH
16) Line segment IJ
17) Line segment KL
18) Line segment MN
19) Line segment OP
20) Line segment QR
21) Line segment ST
Step-by-step explanation:
Coordinates are now described: , , , , , , , , , , , , , , , , , , ,
The slope of each line segment is calculated by applying definition of secant line:
12) Line segment AB
13) Line segment CD
14) Line segment EF
15) Line segment GH
16) Line segment IJ
17) Line segment KL
18) Line segment MN
19) Line segment OP
20) Line segment QR
21) Line segment ST