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Luas Alas = Sisi x Sisi = 36 Cm²
Sisi = Akar Kuadrat Dari 36 Cm² = 6 Cm
Garis Pelukis² = (½ Sisi)² + Tinggi²
= ( ½ x 6 )² + 4²
= 3² + 16
= 9 + 16
= 25
Garis Pelukis = Akar Kuadrat Dari 25 Cm = 5 Cm
Luas 4 Segitiga = 4 x ½ x A.s x Garis Pelukis
= 2 x 6 x 5
= 2 x 30
= 60 Cm²