Răspuns :
[tex]d_{1} = 12 \: cm[/tex]
[tex]d_{2} = 15 \: cm[/tex]
[tex]A=\frac{d_{1} \times d_{2}}{2} = \frac{12 \times 15}{2} = 6 \times 15 = 90 \: {cm}^{2} [/tex]
[tex]d_{1} = 12 \: cm[/tex]
[tex]d_{2} = 15 \: cm[/tex]
[tex]A=\frac{d_{1} \times d_{2}}{2} = \frac{12 \times 15}{2} = 6 \times 15 = 90 \: {cm}^{2} [/tex]