To find the area of a shaded region in a rectangle, find the total area of the rectangle and the area of the white region. Then subtract the white area from the rectangle's area.Continue Reading
To find the area of a rectangle, multiply the length and width of the rectangle together.
Calculate the area of the white space within the rectangle. If it also a rectangle, multiply its length and width together.
Subtract the area of the white space from the area of the entire rectangle. The result is the area of the shaded region within the rectangle.