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GeoGebra
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S5 geometry
Angle in the same segment
Angle at centre is twice the angle at the circumference v2
Angle in the semi circle
Perpendicular bisector of a chord passes through the centre.
Equal chords are equidistant from the centre of the circle
Congruent Chords and their Central Angles
Ang in the opps segment.
Exterior angle of a cyclic quadrilateral
Converse of angle in alternate segment
Angle between tangents from external point
S5 geometry
Author:
wong kwok
Angle in the same segment
Angle at centre is twice the angle at the circumference v2
Angle in the semi circle
Perpendicular bisector of a chord passes through the centre.
Equal chords are equidistant from the centre of the circle
Congruent Chords and their Central Angles
Ang in the opps segment.
Exterior angle of a cyclic quadrilateral
Converse of angle in alternate segment
Angle between tangents from external point
Next
Angle in the same segment
New Resources
小数 的副本
長方體平面投影 (Codex版)
Fibonacci Clock
直角坐標平面上的旋轉變換
近似值：有效數字
Discover Resources
正方形所夾三角形面積相等
Copy of 固定周界的長方形的面積變化
螢橋國中 洪芷昀
Statistical calculator
勾股树的副本
Discover Topics
Complex Numbers
Differential Equation
Geometric Transformations
Geometric Distribution
Orthocenter
