Luas bangun datar di bawa ini adalah…dm².
`Bangun datar
• Trapesium
Sisi sejajar trapesium yaitu : a dan b
a = 15 dm
b = 23 dm
t = 12 dm
Luas Trapesium
L = 1/2 × (a + b) × t
L = 1/2 × (15 + 23) × 12
L = 1/2 × 38 × 12
L = 1/2 × 456
L = 456/2
L = 228 dm² (C)
Luas Trapesium = Jumlah sisi sejajar × Tinggi
L = 1/2 × (a + b) × t
L = 1/2 × (15 + 23) × 12
L = 1/2 × 38 × 12
L = 12/2 × 38
L = 6 × 38
L = 228 Cm (Opsi (C))