Răspuns :
ABCD paralelogram cu aria = 28 cm
Aria AOB = ?
Aria BCA=Aria ABCD/2
Aria BCA = 28/2
Aria BCA= 14 cm
Aria AOB = Aria BCA/2 = 14/2 = 7 cm²
Aria AOB = ?
Aria BCA=Aria ABCD/2
Aria BCA = 28/2
Aria BCA= 14 cm
Aria AOB = Aria BCA/2 = 14/2 = 7 cm²