Question

va rog frumos ca morrrrrrr de nu ca nu inteleg​

Answer 1

$\small A_{ΔABC}=\frac{CC'×AB}{2}=\frac{8×12}{2}=48\:\:cm^2\\\\\small \frac{AA'×BC}{2}=48 ⇒ AA'×16=96 ⇒ AA'=6\:\:cm$