Sec 3

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Elementary Mathematics

Sec 3

Sec3 IT lesson

Circle

Angle Properties of Circle

Applets to prove
1.Angle in the same segment.
2.Opposite angle of a cyclic quad.
3.Tangent chord theorem





Triangles Congruent Triangle Congruent Triangle(1) Congruent Triangle (2) Congruent Triangle (3) Congruent Triangle (4) Law of Sine The Law of Sines The Law of Cosines