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a-dłuższy bok
b-krótszy bok
a=b+1
2a+2b=32
2(b+1)+2b=32
2b+2+2b=32
4b=30
b=7,5cm
a=b+1
a=8,5cm
na pewno dobrze bo obw=2a+2b=2*7,5+2*8,5=32 ;)
3x- wiek asi
3x+x=12
4x=12 /:4
x=3 - wiek kasi
3*3=9 -wiek asi
kasia ma 3 lata, a asia 9.
2. x- bok 1
x+1 - bok 2
x+x+1+x+x+1=32 cm
4x=32-2
4x=30 /:4
x=7,5cm - bok 1
7,5cm +1cm = 8,5cm - bok 2
bok 1 wynosi 7,5cm,a bok 2 - 8,5 cm.
mam nadzieje ze pomoglam :)