帮我生产这一题的解题思路---**Question 25** **Question Stem:** 看图列式计算求下列阴影部分，甲比乙少多少平方厘米？ (Look at the diagram, set up an equation to calculate the following shaded parts, how many square centimeters is 甲 less than 乙?) **Chart/Diagram Description:** * **Type:** Geometric figure (trapezoid with diagonals). * **Main Elements:** * The figure is a trapezoid. * The top base of the trapezoid measures 3 厘米 (cm). * The bottom base of the trapezoid measures 5 厘米 (cm). * The height of the trapezoid is 2 厘米 (cm). * Two diagonals are drawn within the trapezoid, intersecting each other. * These diagonals divide the trapezoid into four triangles. * Two of these triangles are shaded and labeled: * Triangle 甲 (Jia) is the upper triangle, formed by the top base of the trapezoid and the intersection point of the diagonals. * Triangle 乙 (Yi) is the lower triangle, formed by the bottom base of the trapezoid and the intersection point of the diagonals.