A
B
≈
0
.
8
5
E
D
≈
0
.
6
9
B
C
≈
1
.
2
1
E
F
≈
0
.
8
4
C
D
≈
1
.
5
4
F
A
≈
0
.
7
7
A
D
≈
1
.
8
5
B
E
≈
1
.
9
1
C
F
≈
1
.
9
9
A
D
×
B
E
×
C
F
≈
7
.
0
2
A
B
×
E
D
×
C
F
+
A
F
×
C
D
×
B
E
+
B
C
×
E
F
×
A
D
+
A
B
×
C
D
×
E
F
+
D
E
×
F
A
×
B
C
≈
7
.
0
2