Answer:
5.5 m²
Step-by-step explanation:
Find the area of the garden:
A = l × w
A = 2.5 × 2
A = 5 m²
Find the area of the trench and garden together:
A = 3.5 × 3
A = 10.5 m²
Now subtract the area of the garden from the area of trench-garden.
10.5 - 5 = 5.5 m²
