Answer:
Area of trench = 5.5 m²
Step-by-step explanation:
Area of trench = Area of the trench and garden together - Area of garden.
The garden is a rectangle with length 2 1/2 meters and a width of 2 meters.
Area of garden = 2.5 x 2 = 5 m².
The trench and garden together make a rectangle with length of 3 1/2 meters and a width of 3 meters.
Area of the trench and garden together = 3.5 x 3 = 10.5 m²
Area of trench = Area of the trench and garden together - Area of garden.
Area of trench = 10.5 - 5 = 5.5 m²
Area of trench = 5.5 m²
