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Fie un patrat avand lungimea laturii de 4 cm , O punctul de intersectie a diagonalelor , iar M,N,P,Q mijlacele laturilor .
Calculati : aira ABCD , aria AOM , aira ABC , aria AQNB , aria AQNB , aria MONB , aria ONCD


Răspuns :

Aria ABCD = l*l=4*4=16cm2 Aria AOM=AM*MO/2=2*2/2=2cm2 Aria ABC=AB*BC/2=4*4/2=8cm2 Aria AQNB=AB*BN=4*2=8cm2 Aria MONB=MB*BN=2*2=4cm2 Aria ONCD= Aria ONCP+Aria OPD= 4+2=6cm2 OBSERVATIE :Aria ONCP=Aria MONB=4cm2 Aria OPD=Aria AOM=2cm2 Sper ca te-am ajutat !!! :)