Tolong jawab yah. sama caranya juga

Llayang"
=½ × d1 × d2
=½ × 12 × 20
=120m²
Ltrapesium
=½ × (jml sisi sejajar) × t
=½ × (6+12) ×10
=½ × 18 ×10
=90m²

Lbangun
=120 +90
=210m²

harga
=750.000 × 210
=157.500.000