Question

ajutati ma,e urgent!!!ofer coroana!!!va rog​

Answer 1

Răspuns:

$\bf\red{A_{\Delta PDM}=24\:cm^2}$

varianta d

Explicație pas cu pas:

$A_{ABCD}=AD\times AB= 8\times12=96\: cm^2\\A_{\Delta ADM}=\frac{AD\times AM}{2}=\frac{\not8\times6}{\not2}=4\times6=24\:cm^2\\A_{\Delta ADM}=A_{\Delta PBM}=24\:cm^2\\A_{\Delta PCD}=\frac{PC\times DC}{2}=\frac{4\times\not12}{\not2}=4\times6=24\:cm^2\\A_{\Delta PDM}= A_{ABCD}-(A_{\Delta ADM}+A_{\Delta PBM}+A_{\Delta PCD}=96-(24\times3)=96-72=\bf\red{24\:cm^2}$