Use the diagram of trusses for a railroad bridge. D E F 3 3 4 1 1 2 A B С Suppose BE is the perpendicular bisector of DF. Which of the following


Use the diagram of trusses for a railroad bridge.
D
E
F
3
3
4
1
1
2
A
B
С
Suppose BE is the perpendicular bisector of DF. Which of the following statements do you know are true?
Select all that apply.
А
BD = BF
B
E is the midpoint of DF.
C
m_1+m_2 = 90°
D
mZ3+ m_4 = 90°
E
DA I AC


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