如图，四边形ABCD是菱形，AC = 8，DB = 6，DH⊥AB于H，则DH等于多少？---**Chart/Diagram Description:** * **Type:** Geometric figure. * **Main Elements:** * **Points:** Points are labeled A, B, C, D, and H. * **Lines:** Straight lines forming the sides of a quadrilateral ABCD (segments AB, BC, CD, DA), the diagonals AC and BD, and a segment DH. * **Shapes:** A quadrilateral ABCD is shown. The segment DH is drawn from vertex D to a point H on the side AB. * **Angles:** There is a right angle symbol at point H, indicating that segment DH is perpendicular to segment AB. * **Labels and Annotations:** Points A, B, C, D, and H are labeled. The right angle at H is indicated by a square symbol. * **Relative Position and Direction:** Point H lies on the segment AB. The segment DH is perpendicular to AB. The diagonals AC and BD intersect inside the quadrilateral. The figure suggests that ABCD is likely a parallelogram or a related quadrilateral. **Extraction Content:** The image contains a geometric diagram. There is no textual question stem, options, or other explanatory text present in the image. The image shows a quadrilateral ABCD with vertices labeled. A point H is labeled on the side AB. A segment DH is drawn from vertex D to point H, and it is indicated that DH is perpendicular to AB by a right angle symbol at H. The diagonals AC and BD are also drawn.