七年级人教版多边形的内角和、外角和(编辑修改稿)内容摘要:
,则这个多边形的内角和等于 () 176。 176。 176。 176。 ,则一个内角与一个外角的度数之比不可能是 () :1 :1。七年级人教版多边形的内角和、外角和(编辑修改稿)
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We have thirty desks and chairs 42 the room. They are for the 43 . There are 44 Chinese and science books in my desk. There are four pictures 45 the wall. I e to school 46 7:30 . I 47 three lessons
为( ), ∠ A 为( ), ∠ BDF 为( ) 176。 , 80176。 , 40176。 176。 , 75176。 ,40176。 176。 , 70176。 , 60176。 176。 , 75176。 , 50176。 , AB∥ CD,∠ A=45176。 , ∠ C=∠ E,则 ∠ C 为( ). 176。 176。 176。 176
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