Question
Tell whether the line or segment is best described as a chord, a secant, a tangent, a diameter, or a radius of the circle.
\overline{AD}
\overline{HB}
\overleftrightarrow{EG}
\overleftrightarrow{JK}
Answer
\overline{AD} is a diameter because it passes through the center C
and its endpoints are points on the circle
\overline{HB} is a chord because its endpoints are on the circle.
\overleftrightarrow{EG} is a tangent because it intersects the circle in exactly one point.
\overleftrightarrow{JK} is a secant because it intersects the circle in two points