IT IS THE SET OF ALL POINTS EQUIDISTANT FROM THE FIXED POINT.
CIRCLE
IT IS THE DISTANCE FROM THE CENTER TO ANY POINT ON THE CIRCLE.
RADIUS
IT IS A STRAIGHT LINE SGEMENT THAT PASSES THROUGH THE CENTER OF THE CIRCLE AND WHOSE ENDPOINTS LIE ON THE CIRCLE.
DIAMETER
IS A LINE THAT INTERSECTS A CIRCLE AT EXACTLY ONE POINT.
TANGENT
IS A LINE THAT INTERSECTS A CIRCLE AT EXACTLY TWO POINTS.
SECANT
IT IS THE STANDARD FORM OF THE EQUATION OF THE CIRCLE.
(X-H)2 + (Y-K)2 = R2
(H,K) …
IS THE CENTER OF THE CIRCLE.
R …
RADIUS
IF A>R2, THEN THE POINT IS LOCATED … OF THE CIRCLE
OUTSIDE
IF A
INSIDE
IF A=R2, THE THE POINT IS … THE CIRCLE
ON