Answer:

Explanation:
Area Of Compound Regions
When a surface has no regular shape, it can be usually divided into smaller regular parts and add their areas. The surface shown in the figure can be split into 3 smaller rectangles (please refer to the image below).
The area of the yellow part is

The pink region has a height h=4 yd - 3 yd = 1 yd
The area of the pink region is

The total area is
