Odpowiedź:
a)
[tex]P = \frac{ah}{2} \\a = 3 cm \\h = 1 cm \\P = \frac{3cm * 1cm }{2} = 1,5 cm^{2} \\[/tex]
b)
[tex]P = \frac{ah}{2} \\a = 4 cm \\h = 3 cm \\P = \frac{4cm * 3cm }{2} = 6 cm^{2} \\[/tex]
