1. The distance from F to zero is 10. The distance from zero to I is 14. Those distances add to give the distance ...
... FI = 10 cm + 14 cm
... FI = 24 cm
2. The coordinates E and F differ by 7, as do the coordinates G and H. One pair of equal-length segments that are 7 cm long is {EF, GH}.
Segment FG can be added to each of those to make another pair of equal-length segments that are 18 cm long: {EG, FH}.
Suplementary is angles add up to 180 degrees
C=180-D
C=180-84
C=96 degrees
Hope this helped :)
