Answer: 94 square millimeters
Explanation:
The best way to solve this would be by separating it into three separate shapes.
First, solve the Big Rectangle:
Area of Big Rectangle = Length * Width
Area of Big Rectangle = 6 mm * 9mm
Area of Big Rectangle = 54 mm^2
Next solve the Small Rectangle:
Area of Small Rectangle = Length * Width
Area of Small Rectangle = 3mm * 4mm
Area of Small Rectangle = 12 mm^2
Next solve the Triangle:
Area of Triangle = 1/2 * Base * Height
Area of Triangle = 1/2 * 8 mm * 7 mm
Area of Triangle = 28 mm^2
Lastly, Add them all up:
54 mm^2 + 12mm^2 + 28mm^2
Total = 94 mm^2
Hope this helps!