Răspuns :
fie O mijlocul lui AC
AO²=AB²-BO²=26²-10²=676-100=576
AO=√576=24
AC=2·AO=2·24=48
AO²=AB²-BO²=26²-10²=676-100=576
AO=√576=24
AC=2·AO=2·24=48
DB=20cm===>DO=1\2 din DB=20\2=10cm
ABCD=romb===>AB=BC=CD=AD=26
In tr DOC:
m(CO la patrat= DC la patrat-DOla patrat===>CO la patrat=26 la patrat -10 la patrat==>CO la patrat=676-100=576==>CO=rqdical din 576=24 cm
AC=24×2=48cm
ABCD=romb===>AB=BC=CD=AD=26
In tr DOC:
m(CO la patrat= DC la patrat-DOla patrat===>CO la patrat=26 la patrat -10 la patrat==>CO la patrat=676-100=576==>CO=rqdical din 576=24 cm
AC=24×2=48cm