讲解一下图片中的题目---**Question Stem:** 如图在△ABC 中，∠BAC=80°，AD⊥BC 于 D，AE 平分∠BAC，∠B=60°，则∠DAE=多少度 **Chart/Diagram Description:** * Type: Geometric figure (triangle). * Main Elements: * Points: Vertices A, B, C. Points D and E are on the side BC. * Lines: Sides AB, BC, CA of triangle ABC. Line segment AD from vertex A to point D on BC. Line segment AE from vertex A to point E on BC. * Shapes: Triangle ABC. Right angle formed at D by AD and BC. * Labels: Points are labeled A, B, C, D, E. * Relative Position and Direction: Points D and E are on the line segment BC. Line AD is drawn from A to BC such that AD is perpendicular to BC. Line AE is drawn from A to BC and appears to bisect the angle ∠BAC. Point D is located between B and E in the diagram. **Other Relevant Text:** Given conditions: ∠BAC = 80° AD ⊥ BC at D AE bisects ∠BAC ∠B = 60° Question asks for the measure of angle ∠DAE.