メインコンテンツ | サブコンテンツ | ||||
---|---|---|---|---|---|
4p4p00 | The Concept of "Quadrangle→Quadrangle" | ||||
4p4p01 | Connecting the midpoints of four sides | Exploring correspondence | In the condition of particular shape | In the condition of particular shape | In the condition of particular shape |
4p4p02 | Bisectors of four corners | Exploring correspondence | In the condition of particular shape | Always parallelogram | |
4p4p03 | Perpendicular bisectors of four sides | Exploring correspondence | In the condition of particular shape | Always parallelogram | The result is one point |
The result is one point/Sets of corresponding points | |||||
4p4p04 | Perpendiculars from four corners to diagonals | In the case of rectangle | In the case of parallelogram | In the case of square | In the case of general quadrangle |