Răspuns:
notăm a,b,c,d
a=nr par
b=a+2
c=a+2+2
d=a+2+2+2
a/---------/
b/--------/__2_/
c/-------/__2_/__2_/
d/------/_2__/_2__/__2_/
suma lor:412
412-2-2-2-2-2-2=400(suma nr in mod egal)
1+1+1+1=4(segmente egale)
400÷4=100(Un segment)
100×1=100(A)
100+2=102(B)
100+2+2=104(C)
100+2+2+2=106(D)
Răspuns: a=100
b=102
c=104
d=106
Sper ca te-am ajutat!
