a)
a= 12cm
Wzór:
P= 6 a²
P= 6 x (12cm)²
P= 6 x 144 cm²
P= 864 cm²
b)
P= 125 cm²
125cm²= 6a² / :6
a =
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a)
a= 12cm
Wzór:
P= 6 a²
P= 6 x (12cm)²
P= 6 x 144 cm²
P= 864 cm²
b)
P= 125 cm²
125cm²= 6a² / :6
a =