Maths
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Author:
Anonymous
ID:
218737
Filename:
Maths
Updated:
2013-05-09 05:51:46
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Equality of tangents from a point
The two tangents drawn from an outside point are always equal in length , so creating an isosceles situation with two congruent right angled triangles
Tangent radius meet at
90°
Chord bisector is a
angle in a semicircle =
Sneaky isosceles formed by
opposite angles of a cyclic quadrilateral =
180°
ANgles in the opposite segment are
Angles in the same segment
Angle at the centre
:)
intersecting chords