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a= √3
P = √3²=3 [j²]
Obwod kwadratu = 4a
a = √3
Obw = 4· √3= 4√3 [j]
b) Pole prostokata = ab
a = 2√3
b = 3√5
P = (2√3)·(3√5)= 6√15 [j²]
Obwod prostokata = 2a + 2b
a = 2√3
b = 3√5
Obw = 2·2√3 + 2·3√5 = 4√3 + 6√5 [j]