ini kk soalnya onnyfatthi 8 soal lgi nti y kk pliss kk pke jln y kk

NOMOR 1
L1 = ½ × a × t
L1 = ½ × (57 – 19 – 20) × (51 – 28)
L1 = ½ × 18 cm × 23 cm
L1 = 207 cm²

L2 = p × l
L2 = 57 cm × 28 cm
L2 = 1.596 cm²

Luas Gabungan
L = L1 + L2
L = 207 cm² + 1.596 cm²
L = 1.803 cm²

NOMOR 2
Bangun Jajar genjang
L1 = a × t
L1 = 65 cm × 31 cm
L1 = 2.015 cm²

L2 = a × t
L2 = 65 cm × 31 cm
L2 = 2.015 cm²

Luas Gabungan
L = L1 + L2
L = 2.015 cm² + 2.015 cm²
L = 4.030 cm²