Answer:
option A, B and C are true.
( A. Point H is the midpoint of FG
B. Line t intersects FG at a right angle
C. Line t is perpendicular to FG )
Step-by-step explanation:
We are given that Line t is the perpendicular bisector of FG.
If line t intersects FG at point H.
i.e. FH=HG.
that means line t forms a right angle at FG.
also t is perpendicular to line FG.
Hence, option A,B, and C are true.