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Yukiko
a fost răspuns

Aflati perimetrul triunghiului ABC (rotunjit la prima zecimala) stiind ca AB=8√50m,BC=7√18 si CA=4√98m.

Răspuns :

Alexandrastan93
Perimetrul reprezinta suma tuturor laturilor
AB=8 radical 50
radical 50(descompunem radicalul)=5radical2
AB=8*5radical2=40radical2
BC=7radical18
radical18(descompunem radical18)=3radical2
BC=7*3radical2=21radical2
CA=4 radical98
radical98=7radical2
CA=4*7radical2=28radical2
Perimetrul=AB+BC+CA=40radical2+21radical2+28radical2=89radical2 

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