Question

aria unui trapez cu baza mica de 15cm baza mare de 7,2 si inaltimea de 4cm

Answer 1

$A= \frac{(B+b)*h}{2} =\ \textgreater \ A= \frac{(15+7,2)*4}{2} =\ \textgreater \ A= \frac{43,8}{2} =\ \textgreater \ A=21,9cm^2$