ini kk nonyfatthi soalnya lgi

NOMOR 5
L1 = p × l
L1 = 58 cm × 32 cm
L1 = 1.856 cm²

L2 = ½ × a × t
L2 = ½ × (58–23) × (60–32)
L2 = ½ × 35 cm × 28 cm
L2 = 490 cm²

Luas Gabungan
L = L1 + L2
L = 1.856 cm² + 490 cm²
L = 2.346 cm²

NOMOR 6
L1 = p × l
L1 = 50 cm × 41 cm
L1 = 2.050 cm²

L2 = p × l
L2 = 18 × (50–12–14)
L2 = 18 cm × 24 cm
L2 = 432 cm²

Luas Gabungan
L = L1 + L2
L = 2.050 cm² + 432 cm²
L = 2.482 cm²

NOMOR 7
Bangun dibagi menjadi dua bagian trapesium yang sebangun
L1 = (a+b)/2 × t
L1 = (35 cm + 70 cm)/2 × (32 cm ÷ 2)
L1 = 105 cm/2 × 16 cm
L1 = 840 cm²

L2 = (a+b)/2 × t
L2 = (35 cm + 70 cm)/2 × (32 cm ÷ 2)
L2 = 105 cm/2 × 16 cm
L2 = 840 cm²

Luas Gabungan
L = L1 + L2
L = 840 cm² + 840 cm²
L = 1.680 cm²