Odpowiedź:
Obw = a + 3 + a + 3 + 4a + 4a = 10a + 6
P = (a + 3) * 4a = + 12a
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P= 4a^2 +12
Obw= 6(a+1)
Odpowiedź:
Obw = a + 3 + a + 3 + 4a + 4a = 10a + 6
P = (a + 3) * 4a = + 12a