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Luas I = Luas persegi panjang
Luas I = p x l
Luas I = 16 x 6 = 96 cm²
Luas II = Luas segitiga
Luas II = 1/2 (Alas x Tinggi)
Luas II = 1/2 (4 x 6) = 1/2 x 24
Luas II = 12 cm²
*. 4 didapat dari pengurangan 16 dengan 12
Maka,
Luas = Luas I + Luas II
Luas = 96 + 12 = 108 cm²
1) luas persegi panjang = p × l
=16 × 6 = 96
2) luas segitia = 1/2 alas × tinggi
= 1/2 × 4 × 6 = 12
3) luas total : 96 + 12 = 108 cm2