Respuesta :

Answer:

the answer is b

Step-by-step explanation:

The shaded region is a rectangle, the area of the shaded region is 48 mm²

How to determine the area of the shaded region?

From the complete question, the shaded region has the following properties

Shape: Rectangle

Length = 12 mm

Width = 4 mm

The area is then calculated as:

Area = Length * Width

This gives

Area = 12 mm * 4 mm

Evaluate

Area = 48 mm²

Hence, the area of the shaded region is 48 mm²

Read more about areas at:

https://brainly.com/question/24487155

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