A 7 B A
C A B
o
n i
C D n
ur
Bo
4 s co int s 180
corr
AB ICD
C D
CAB ICD Alt K's
CAC HBD
Gradient É
parallel lines DM Mz
lines D M X mz 1
collinear D lie on same line same gradient
Proving parms
2 pairs of Il lines gradient
Zappa's
Diag bisect same mid pt
rhombus diag I
pair opp sides grdientt distance
one
z pairs opp sides D distance
C A B
o
n i
C D n
ur
Bo
4 s co int s 180
corr
AB ICD
C D
CAB ICD Alt K's
CAC HBD
Gradient É
parallel lines DM Mz
lines D M X mz 1
collinear D lie on same line same gradient
Proving parms
2 pairs of Il lines gradient
Zappa's
Diag bisect same mid pt
rhombus diag I
pair opp sides grdientt distance
one
z pairs opp sides D distance