Question

In the diagram which line/segment is a radius, chord, and tangent (in that order)

Answer 1

The correct choice is shown selected.

Explanation:

Since a radius needs to appear first on the list, it is worthwhile to identify those segments that are radii. A radius extends from the center (O) to a point on the circle. OG and OD are the only ones. The selected answer is the only one that has one of those listed first.

A chord is a line segment whose ends are points on the circle. There are 4 chords in the figure, one of which is also a diameter:

... DG, DH, FG, FH . . . . DG is also a diameter, since it includes the center point, O

There is one tangent: DE, an external line that intersects the circle at one point.