panjang sisi = k/4
=60/4
=15 cm
luas = s.s
=15 . 15
=225 cm²
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panjang sisi = k/4
=60/4
=15 cm
luas = s.s
=15 . 15
=225 cm²
60 cm = 4 × sisi
sisi = 60 ÷ 4
= 15
Luas = Sisi × sisi
= 15 × 15
= 225 cm²