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已知三角形的两边及其夹角,求作三角形
已知:线段 , , ,求作: ,使 ,
,
Diagram showing two line segments labeled and .
Diagram showing an angle labeled .
作法
(1) 作
(2) 在射线 上截取 ,在射线 上截取
(3) 连接
则 为所求作的三角形
作法与示范
Diagram illustrating the construction of . Ray is drawn from point . Ray is drawn from point . Point is marked on ray . Point is marked on ray . Segment is drawn. Construction arcs are shown near and .