Angles in the opposite segments are equal., Tangents from a point meet at right angles., A radius perpendicular to chord bisects that chord., Angles in the same segment are equal., The angle at the centre is double the angle at the circumference., Opposite angles in a cyclic quadrilateral add up to 180°., Angles in a semi-circle equal 90°., Two tangents from a point are equal in length.

circle theorems match

由
列印
嵌入

排行榜

我們目前正在努力改進排行榜功能。請通過提供您的反饋來幫助我們。

提供反饋

視覺風格

選項

我們目前正致力於改善活動設定。請提供您的回饋來協助我們。

提供反饋

切換範本

恢復自動保存: ?