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Calculati aria unu trapez cu inaltimea de 2,4 dm si suma bazelor de 560 de mm.Va rog!

Răspuns :

A = (B + b)×h÷2


A = 5,6×2,4÷2


A = 6,72 dm^2


560mm=56cm
2,4dm=24cm

A=56•24/2=56•12=
[tex] {672cm}^{2} [/tex]