【摘要】 用直圆锥面法图解了空间线与面、线与线、面与面的角度问题,并讨论了直圆锥面法图解各类问题时适用的条件。在图解比较复杂的空间角度问题时,用该法作图简单,便于掌握。更多还原

【Abstract】 By using the method of the right circular cone, the Problems involvingspace angles between line and line, line and plane, plane and plane have beenillustrated, and the applicable conditions for using the right circular coneto illustrate various problems are discussed. When illustrating morecomplex problems involving space angles, our procedure proves simple tocoustruct and easy to learn.更多还原