Odpowiedź:
P = a × b
a = 4cm b = 12cm P = 4 × 12 = 48cm
a = x =krótszy bok
b = 3x - dłuższy bok
x + x + 3 + 3x = 32cm
8x = 32cm
x = 4 cm
3x = 12cm
P= a*b = 4cm * 12cm = 48cm²
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Odpowiedź:
P = a × b
a = 4cm b = 12cm P = 4 × 12 = 48cm
Odpowiedź:
a = x =krótszy bok
b = 3x - dłuższy bok
x + x + 3 + 3x = 32cm
8x = 32cm
x = 4 cm
3x = 12cm
P= a*b = 4cm * 12cm = 48cm²