EUCLIDEAN GEOMETRY MATHEMATICS AND A
MATHEMATICS 2020)
,BASIC THEOREMS :
Theorem :A line drawn from center of circle to circumference of the circle ,bisects the
chord perpendicularly .
Remark: Cuts the chord at 90.
, CIRCUMFERENCE THEOREM
Theorem : The angle at the Centre is twice the angle at the circumference .
Remark : 2C=A