forget the parts of circle
1.centre -the fixed point from which all points on the circle are the same distance away 2.radius -the distance from the centre to any point on the circle 3.diametre -the longest chord of the circle which passes through the centre 4.chord -airlines segment that connects 2 points on the circle circumference, but not pass through the centre 5.tangent -a line that touches the circle at exactly one point 6.secant -a line that passes through the circle at two points 7.sector -section of the circle created by two ready and an Arc 8.segment -a part of the circle circumference .a major arc is more than half the circumference and a minor arkis less than half the circumference 9. circumference -the distance around the circle
