tolong jawab ya no 5 ini nama gambarnya ya

L1 = ½ × a × t
= ½ × 10 × (5 + 3)
= ½ × 10 × 15
= 75 cm²

L2 = ½ × (a + b) × t
= ½ × (10 + 3 + 3) × 3
= ½ × 16 × 3
= 24 cm²

Lb = 75 - 24 = 51 cm²