Cu desen va rog!!!!!!
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Răspuns:
O__A____B_______C_______D______
OA1,4; OB3;. OC4,7. OD6,8
AB=3-1,4=1,6. BC=4,7-3=1,7 CD=6,8-4,7=2,1
AC=4,7-1,4=3,3 BD=6,8-3=3,8
AD=6,8-1,4=5,4