krawedz podstawy a=3cm
wysokosc bryly =h
Pb=?
tg30=h/a
√3/3 =h/3
3h=3√3 /:3
h=√3 cm
Pb=3·a·h=3·3cm·√3cm =9√3 cm²
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krawedz podstawy a=3cm
wysokosc bryly =h
Pb=?
tg30=h/a
√3/3 =h/3
3h=3√3 /:3
h=√3 cm
Pb=3·a·h=3·3cm·√3cm =9√3 cm²