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GeoGebra
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Outline
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
算柱 (兩位數)
球體建築師
兩組對邊相等的四邊形
異分母分數減法
兩位數除以一位數（一）
Discover Resources
分數與小數
Congruent Triangles Demo
pentagon
餘弦定理修正項及風車證明
小遊戲
Discover Topics
Step Functions
Differential Calculus
Rotation
Function Graph
Centroid or Barycenter
