1)
POUR MC=
MB/MA=BC/AD=MC/MD
MB/MA=MC/MD
1000/800=MC/1120
1.25=MC/1120
MC=1.25*1120
MC=1400 m
POUR DA=
MB/MA=BC/AD
1000/800=600/AD
1.25=600/AD
1.25*AD=600
AD=600/1.25=480 m
2.
a.
MA+AD+MD
800+480+1120
=2.32 km
b.
MB+BC+MC
1000+600+1400
=3 km
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1)
POUR MC=
MB/MA=BC/AD=MC/MD
MB/MA=MC/MD
1000/800=MC/1120
1.25=MC/1120
MC=1.25*1120
MC=1400 m
POUR DA=
MB/MA=BC/AD=MC/MD
MB/MA=BC/AD
1000/800=600/AD
1.25=600/AD
1.25*AD=600
AD=600/1.25=480 m
2.
a.
MA+AD+MD
800+480+1120
=2.32 km
b.
MB+BC+MC
1000+600+1400
=3 km