解题---**Extraction Content:** **Question Stem:** 2、求下列梯形的周长和面积。 (Find the perimeter and area of the following trapezoid.) **Geometric Figure Description:** * **Type:** Right Trapezoid ABCD. * **Vertices:** Labeled A, B, C, D. * **Angles:** Right angle symbol indicated at vertex A and vertex B. This means Angle A = 90 degrees and Angle B = 90 degrees. * **Sides:** * Side AD has a length label of 2. * Side BC has a length label of 4.4. * Side CD has a length label of 4. * Side AB's length is not explicitly given in the diagram, but is implied to be the height. * **Relationship between sides:** Given the right angles at A and B, sides AD and BC are parallel bases, and side AB is perpendicular to both, serving as the height of the trapezoid. CD is the non-parallel side. * **Other Elements:** * Dashed line segment connecting A to C (diagonal). * Dashed line segment connecting B to D (diagonal). * A dashed line segment drawn from vertex D perpendicular to the base BC, implicitly forming a right-angled triangle. * Two circular regions labeled with ① and ② inside the trapezoid.

视频信息