Answer:
1).
Sqrt (7 x 12) = 9.165
2).
Altitude = Sqrt (14 x 8) = 10.583
3).
If FG is the angle bisector of angle F in triangle DEF,
DF/EF = DG/EG
6/EF = 4/9
EF = 13.5 in long.
4).
In triangle QRS, XY is parallel to SR.
SX/XQ = RY/YQ
3/2x = 4.5/7.5
9x = 22.5
x = 2.5
The length of QS
= SX + 2x
= 3 + 5
= 8
did this help sorry if it didnt
Explanation: