我是一名小学生，请用中文帮我讲解一下这道题目。---Here is the extracted content from the image: **Question Stem:** 求正方形中阴影部分面积? (Translation: What is the area of the shaded part in the square?) **Chart/Diagram Description:** * **Type:** Geometric figure, specifically a square divided into four regions. * **Main Elements:** * **Square:** A large square is shown as the main enclosure. * **Midpoints:** Each of the four sides of the square (top, bottom, left, right) has a label "中点" (midpoint) indicating a specific point on that side. * **Internal Divisions:** Four line segments originate from the midpoints of the top, bottom, left, and right sides of the square, respectively, and all meet at a common interior point within the square. These lines divide the square into four quadrilaterals. * **Regions and Areas:** * The region in the top-left is labeled with an area of "28m²". * The region in the top-right is labeled with an area of "38m²". * The region in the bottom-left is labeled with an area of "32m²". * The region in the bottom-right is a "阴影部分" (shaded part). This region is filled with parallel diagonal lines. Its area is unknown and is the subject of the question.