Odpowiedź:
[tex]3)pole = ah \\ 1. \\ 30 \times 16 = 480 {cm}^{2} \\ 2. \\ 42 \times 25 = 1050 {dm}^{2} \\ 3. \\ 94 \times 101 = 9494 {m}^{2} [/tex]
[tex]5) pole = \frac{e \times f}{2} \\ a) \frac{6 \times 8}{2} = \frac{68}{2} = 34 {cm}^{2} \\ b) \frac{12 \times 5}{2} = \frac{60}{2} = 30 {dm}^{2} [/tex]
