circle theorems Flashcards
1
Q
alternate segment theorem:
A
the angle that lies between a tangent and a line that is subtended and it is equal to the angle at the end of the line in the alternate sequence
2
Q
angle in the centre theorem:
A
angle at centre is twice the angle at the circumference
3
Q
angles in the same segment:
A
angles in the same segments are equal
4
Q
angles in a semi circle:
A
angle in a semi circle is 90 degrees
5
Q
chord of a circle:
A
the perpendicular from the centre of a circle to a chord bisect the cord into two equal parts
6
Q
cyclic quadrilateral:
A
opposition angles in a cyclic (kite like) quadrilateral total 180 degrees
7
Q
tangent of a circle:
A
angle between tangent and radius is 90 degrees
