Kąty przecięto dwiema prostymi równoległymi . wyznacz x .
a) 2,3,x,5,7
b) x,2,x+2,3
zad.1
2/x=5/6
5x=12
x=12/5
zad.2
x/2=(x+2)/3
2x+4=3x
x=4
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zad.1
2/x=5/6
5x=12
x=12/5
zad.2
x/2=(x+2)/3
2x+4=3x
x=4