Răspuns:
Mai jos
Explicație pas cu pas:
[tex]1. \\ \frac{5 \times 8}{2} = 20 \\ \frac{6 \times 8}{2} = 24 \\ \frac{9 \times 12}{2} = 64 \\ \frac{4 {}^{2} \sqrt{2} }{4} = 4 \sqrt{2} \\ \frac{6 \times 6}{2} = 18 \\ \frac{5 \times 2}{2} = 5 \\ \frac{3 \times 10}{2} = 15 \\ \frac{8 \times 4}{2} = 16 \\ \\ 2. \\ 6 \times 8.5 = 27 \\ 9 \times 5 = 45 \\ 2.5 {}^{2} = 6.25 \\ \frac{4 \times 6}{2} = 12[/tex]
