So both are useful, and in assignment 7 I'll give you a simple problem so that you can apply the perpendicular axis theorem.
俩定理都有用，第七次作业中我会，给你们简单的问题，用到垂直轴定理。
So both are useful, and in assignment 7 I'll give you a simple problem so that you can apply the perpendicular axis theorem.
俩定理都有用，第七次作业中我会，给你们简单的问题，用到垂直轴定理。
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