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10.3.1-Relationship between angle at the centre and angle at the circumference_chi

By: t9420, Views: 889

10.3.1-Relationship between angle at the centre and angle at the circumference_chi

10.3.2-Angle in a Semi-circle_chi

By: t9420, Views: 797

10.3.2-Angle in a Semi-circle_chi

10.3.3-Angles in the Same Segment_chi

By: t9420, Views: 907

10.3.3-Angles in the Same Segment_chi

10.3.1-Angles at the Centre and Angles at the Circumference_eng

By: t9420, Views: 929

10.3.1-Angles at the Centre and Angles at the Circumference_eng

10.3.2-Angle in a Semi-circle_eng

By: t9420, Views: 822

10.3.2-Angle in a Semi-circle_eng

10.3.3-Angles in the Same Segment_eng

By: t9420, Views: 995

10.3.3-Angles in the Same Segment_eng

11.3.1-圓的切線的性質_chi

By: t9420, Views: 582

11.3.1-圓的切線的性質_chi

11.3.2-由一外點引出的兩條切線_chi

By: t9420, Views: 556

11.3.2-由一外點引出的兩條切線_chi

11.3.1-Basic Properties of Tangents to Circles_eng

By: t9420, Views: 866

11.3.1-Basic Properties of Tangents to Circles_eng