Question

calculati aria unui trapez isoscel cu inaltimea de 8 cm bazele de 5 si 7 cm

Answer 1

 $A_{trap.}=\frac{B+b}{2}\cdot{h}\;\;\Rightarrow\;\;A=\frac{5+7}{2}\cdot8=48cm^2$

Answer 2

A=(b+B)*h/2
A=12*8/2
A=48 cm patrati