bantuin kak! besok di kumpulin inii
1. 80
2. 38
3. 78 cm²
4. 43 cm
5. 152 cm²
Penjelasan dengan langkah-langkah:
1. Luas Trapesium
= ½ × (a + b) × t
= ½ × (8 + 12) × 8
= ½ × 20 × 8
= 80
2. Keliling Trapesium
= 8 + 10 + 12 + 8
= 38
3. Luas Trapesium
= ½ × (a + b) × t
= ½ × (4 + 9) × 12
= ½ × 13 × 12
= 78 cm²
4. Keliling Trapesium
= 4 + 15 + 9 + 15
= 43 cm
5. Luas Trapesium
= ½ × (a + b) × t
= ½ × (16 + 22) × 8
= ½ × 38 × 8
= 152 cm²
