Answer:
Area of the figure = 45ft²
Explanations:
The figure is a composite of two rectangles
Area = Length x Width
Area of rectangle 1 = 10 x 3
Area of rectangle 1 = 30 ft²
Area of rectangle 2 = 5 x 3
Area of rectangle 2 = 15 ft²
Area of the figure = Area of rectangle 1 + Area of rectangle 2
Area of the figure = 30ft² + 15ft²
Area of the figure = 45ft²