tolong, bantuin, pakai cara

1. L trapesium + L layang²
=> [½ (a+b) × t] + [½ d¹ × d²]
=> [½ (12 + 8) × 9.5] + [½ 13.5 × 8]
=> 95 + 54
=> 149 cm²
2. L arsir = L trapesium - L 3 Δ
= [½ (a+t) × t] - [3 × ½ a × t]
= [½ (48+32)×12] - [3×½ 16×6]
= 480 - 144
= 336 m²