讲这道题---**Extracted Content:** **Question 02:** **(2021 江夏)** **Question Stem:** 如图，将△ABC绕A点逆时针旋转60°得到△ADE，连接DE，若∠CDE=90°，则∠BCD的度数是（） **Options:** A. 110° B. 120° C. 130° D. 150° **Chart/Diagram Description:** * **Type:** Geometric figure illustrating a rotation. * **Main Elements:** * **Points:** Labeled points A, B, C, D, E. * **Lines/Segments:** * Three visible triangles are formed by connecting points: △ABC, △ADE, and △ACD. * Segments: AB, AC, BC, AD, AE, DE, CD. * **Shapes:** * Triangle ABC. * Triangle ADE. * Quadrilateral ACDE (formed by points A, C, D, E). * **Angles:** * A right angle symbol is marked at vertex D, indicating ∠CDE = 90°. * **Relative Position:** * Point A is a common vertex for both △ABC and △ADE, and serves as the center of rotation. * △ADE is positioned such that it appears to be a counter-clockwise rotation of △ABC around point A. * Point C is between B and D when viewed from A, and point E is to the right and slightly below D.