• The 2 lines are labeled script l and j.
  
  • Point upper A and point upper B are on line script l.
  • Point upper C and point upper D are on line j.
• Line segments upper A upper C, upper A upper D, and upper B upper D are drawn between line script l and line j.
  
  • Point upper E is on line segment upper A upper C.
  • Point upper G is on line segment upper B upper D.
• Line segment upper E upper G is drawn from line segment upper A upper C to line segment upper B upper D.
  
  • Line segment upper E upper G and line segment upper A upper D intersect at point upper F.
• The following 4 triangles are formed by the intersection of the 2 lines and 4 line segments:
  
  • Triangle upper A upper C upper D
  • Triangle upper A upper E upper F
  • Triangle upper D upper B upper A
  • Triangle upper D upper F upper G
• 3 angles are labeled as follows:
  
  • The measure of angle upper A upper D upper C is x°.
  • The measure of angle upper A upper E upper F is x°.
  • The measure of 1 angle formed by the intersection of line script l and line segment upper A upper C and exterior to triangle upper A upper C upper D is x°.
• A note indicates the figure is not drawn to scale.

 

In the figure, $\overline{EG}$ and $\overline{AD}$ intersect at point $F$, and line $\mathcal{l}$ is parallel to line $j$. If $EF=0.5CD$ and $FG=2.25CD$, which of the following must be true?

1. $AB=2.25EF$
2. $FG=0.5AB$
3. $\frac{EF}{FG}=\frac{AF}{FD}$