请问上图面积是多少，请用割补的方法解决，不要用勾股定理或者建立坐标系---Chart/Diagram Description: Type: Geometric figure, specifically a quadrilateral divided by a dashed line segment representing a height. Main Elements: - The figure is a quadrilateral with four vertices and four sides. - There is a horizontal bottom side labeled with length 12. - There is a vertical left side. - There is a top side which is slanted upwards from left to right, labeled with length 13. - There is a right side which is slanted downwards from left to right, labeled with length 13. - A dashed vertical line segment is drawn inside the quadrilateral, connecting the top side to the bottom side. This dashed line represents a height. - The length of the dashed line segment (height) is labeled as 12. - There is a right angle symbol at the intersection of the dashed line and the bottom side, indicating they are perpendicular. - There is a right angle symbol at the intersection of the dashed line and the top side, indicating they are perpendicular. - The top side is divided into two segments by the dashed line's endpoint. The length 13 is the total length of this top side. (Correction: Upon closer inspection, the labels "13" appear next to two different sides, not the segments of the top side. The length 13 is on the upper-left side and the upper-right side.) - Let's re-evaluate the figure. It appears to be a quadrilateral with a vertical segment dropped from one vertex to the opposite side (or its extension). The dashed line connects a vertex on the upper side to the lower base. The right angle symbols show the dashed line is perpendicular to both the lower base and the upper side. - Let's assume the figure is intended to show a quadrilateral decomposed into parts. The bottom side is a horizontal segment of length 12. The dashed line is a vertical segment of length 12. The dashed line forms right angles with the bottom side and the top side it meets. The slanted upper-left side has length 13. The slanted upper-right side has length 13. - There is no question stem, options, or other text accompanying the image. The image solely contains the geometric figure with labeled lengths and right angles. Summary of Labels: - Bottom horizontal side length: 12 - Dashed vertical segment length (height): 12 - Upper-left slanted side length: 13 - Upper-right slanted side length: 13 - Right angle symbols at the intersections of the dashed line with the bottom side and the upper side.