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x - dłuższa podstawa
x-2 - krótsza podstawa
2x - ramiona
Obw=32cm
x+2x+x-2=32
4x-2=32
4x=34 /:4
x= 8,5
dł. podst. = 8,5cm
krótsza podst. = 8,5-2=6,5cm
ramiona = 8,5*2=17cm
Boki:
a
b = a+2
c = 2a
32 = a+a+2+2*2a
30 = 2a+4a
6a = 30 /6
a = 5
a+2 = 7
2a = 10
podstawa 1- 5 cm
podstawa 2- 7 cm