Question

Calculati aria unui trapez cu baza mica de 15 cm ,baza mare de 7,2 dm si inaltimea de 4 cm.Va rog mult e urgent.

Answer 1

[tex]7,2dm=72cm\\ A= \frac{(B+b)*h}{2} \\ A =\frac{(72+15)*4}{2} \\ A= \frac{87*4}{2} \\ A= \frac{348}{2} \\ A=174cm^2[/tex]