Answer:
2400 square mm.
Explanation:
To find the area of the shaded figure, you need to break it down into two rectangles and then subtract the smaller rectangle's area from the larger one.
Let's assume the shaded figure consists of two rectangles:
1. The larger rectangle with a length of 120 mm and a width of 50 mm.
2. The smaller rectangle inside it with a length of 120 mm and a width of 30 mm.
First, find the area of the larger rectangle:
Area of larger rectangle = Length × Width
Area = 120 mm × 50 mm = 6000 square mm
Now, find the area of the smaller rectangle:
Area of smaller rectangle = Length × Width
Area = 120 mm × 30 mm = 3600 square mm
To find the area of the shaded region, subtract the area of the smaller rectangle from the area of the larger rectangle:
Shaded Area = Area of larger rectangle - Area of smaller rectangle
Shaded Area = 6000 square mm - 3600 square mm = 2400 square mm
So, the area of the shaded figure is 2400 square mm.