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b=5cm
c=7cm
Obw₁=40cm
Obw₂=4cm+5cm+7cm=16cm
k=Obw₁ : Obw₂=40cm : 16cm=2,5
a'=2,5*4cm=10cm
b'=2,5*5cm=12,5cm
c'=2,5*7cm=17,5cm
Boki tego trojkata to 10cm, 12,5cm i 17,5cm.
b=5cm
c=7cm
Obw₁=40cm
Obw₂=4cm+5cm+7cm=16cm
k=Obw₁ : Obw₂=40cm : 16cm=2,5
a'=2,5*4cm=10cm
b'=2,5*5cm=12,5cm
c'=2,5*7cm=17,5cm
Boki to 10cm, 12,5cm i 17,5cm.
lub:
Ob: 4+5+7 = 16cm
k = 40/16 = 5/2 = 2.5
4*2,5 =10
5*2.5=12.5
7*2,5=17.5
b = 5cm
c = 7cm
Obwód₁ = 40cm
Obwód ₂= 4cm+5cm+7cm=16cm
k = Obwód₁ : Obwód₂ = 40cm : 16cm = 2,5
a = 2,5*4cm = 10cm
b = 2,5*5cm = 12,5cm
c= 2,5*7cm =17,5cm
odp. Boki to 10cm . 12,5cm . 17,5cm