Odpowiedź:
[tex]a)a = 3dm = 30cm \\ b = 10cm \\ h = 5cm \\ p = ah = 30cm \times 5cm = 150 {cm}^{2} \\ b)e = 6m = 60dm \\ f = 3dm \\ p = \frac{ef}{2} = \frac{60dm \times 3dm}{2} = \frac{180 {dm}^{2} }{2} = 90 {dm}^{2} \\ c)a = 350cm = 3.5m \\ h = 2.5m \\ p = ah = 3.5m \times 2.5m = {8.75m}^{2} [/tex]
