初中几何动点，求CP的最小值?---**Textual Information:** **Title:** 初中几何动点 **Question Stem:** 求CP的最小值? **Other Relevant Text:** 一箭穿心 初中经典定弦定角模型——半隐圆问题！#中考数学 # 初中数学 #初中几何 6天前 贝杭数学 可视化 **Chart/Diagram Description:** **Type:** Geometric figure (rectangle with inscribed elements) **Main Elements:** * **Shape:** A rectangle labeled ABCD. * **Points:** Labeled points A, B, C, D at the vertices of the rectangle. A point P is marked on the diagonal AC. * **Lines/Segments:** * Sides of the rectangle: AB (left vertical), BC (bottom horizontal), CD (right vertical), DA (top horizontal). AB and CD are parallel and equal length; BC and DA are parallel and equal length. * Diagonal: AC (from top-left A to bottom-right C). * Segment: BP (from B to P). * Segment: CP (from C to P, shown in red). * Segment: AP (part of AC). * Segment: AB (shown as a side and also part of a blue triangle). * **Lengths:** Length of AB is labeled as 8. Length of BC is labeled as 10. * **Angles:** A right angle symbol is shown at point P between segments BP and AC. This indicates that BP is perpendicular to AC. * **Curves:** A dotted yellow curve is shown passing through points A, P, and B. This curve appears to be a circular arc or part of a circle. It looks like a semicircle with diameter AB. * **Shaded Area:** A blue shaded region is bounded by segments AB, AP, and the dotted arc APB. This forms a segment of the circle. * **Relative Position:** P is located on the diagonal AC. P is also located on the dotted curve passing through A and B. The right angle is at P, formed by the intersection of BP and AC. **Coordinate Axes:** No explicit coordinate axes are shown, but the rectangle implies a standard Cartesian coordinate system could be applied (e.g., B at origin, BC along x-axis, BA along y-axis). **Labels and Annotations:** Labels A, B, C, D, P. Length annotations 8 and 10. Right angle symbol at P. **Legend:** None. **Data Points/Series:** Not a statistical chart.