plis jawab dengan caranya

L Persegi panjang = p × l
= 25 cm × 18 cm = 450 cm²
L Trapesium = 1/2 × (a + b) × t
= 1/2 × (35 cm + 25 cm) × 12 cm = 360 cm²
L total = 450 cm² + 360 cm² = 810 cm²