MATH - 3Q - Circle

circle

set of points equidistant to the center

center

the point in the middle of the circle

radius

line that joins the center of the circle to the outer boundary

diameter

longest chord whose endpoints lie on the circle and passes thru the center

chord

line segment whose endpoints lie on the circle

arc

connected section of the circumference

less the 180

minor arc measurement

180

semi circle measurement

more than 180

major arc measurement

360

circle measurement

sector

region bounded by the radii of equal lenght with a common center

secant

extended chord that cuts the circle at two distinct points

tangent

line that touches the circumference of a circle at a point

central angle

formed by 2 radii and is an angle whose vertex is at the center of a circle

measurement of the central angle is equal to the measurement of the intercepted arc

central angle and arc theorem