panjang = 2l
lebar = l
→ 2(p + l) = k
→ 2(2l + l) = 288 cm
→ 2(3l) = 288 cm
→ 6l = 288 cm
→ 48 cm
→ p × l
→ 2l × l
→ 2l²
→ 2(48²)
→ 2(2.304)
→ 4.608 cm²
p = 2l
l = l
K = 2 (p + l)
288 = 2(2l + l)
288 = 2(3l)
288 = 6l
l = 288/6
l = 48 cm
L = p × l
L = 2l × l
L = 2(l²)
L = 2(48²)
L = 4.608 cm²
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panjang = 2l
lebar = l
→ 2(p + l) = k
→ 2(2l + l) = 288 cm
→ 2(3l) = 288 cm
→ 6l = 288 cm
→ 48 cm
→ p × l
→ 2l × l
→ 2l²
→ 2(48²)
→ 2(2.304)
→ 4.608 cm²
p = 2l
l = l
K = 2 (p + l)
288 = 2(2l + l)
288 = 2(3l)
288 = 6l
l = 288/6
l = 48 cm
L = p × l
L = 2l × l
L = 2(l²)
L = 2(48²)
L = 4.608 cm²
Jadi, luas persegi panjang dengan keliling 288 cm adalah 4.608 cm²