Oblicz obwód : 1.pierwszy bok 2 1/2 a drugi bok 4 2/5 2.pierwszy bok 5 cm a drugi 2 razy krutszy Pomocy !!! :(
1. 2*2 1/2 + 2* 4 2/5 = 5 + 8,8 = 13,8 2. 2 * 5 + 2 * 2,5 = 10 +5 = 15
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1. 2*2 1/2 + 2* 4 2/5 = 5 + 8,8 = 13,8
2. 2 * 5 + 2 * 2,5 = 10 +5 = 15