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In triunghiul ABC ;AB=16cm ;BC=20cm;m(B)=30(de grade)
Calculati aria triunghiului.
URGENT !VA ROG !


Răspuns :

Aria=AB xBC x sin(B) /2
ARIA= 16cm x 20cm x sin(B) /2=320cm² x (1/2)/2=80cm²