In circle O, which segment is a chord?

Question options:

A - OH-->

B - SD-->

C - OR-->

D - RC-->

ForgottenMoon
Jun 4, 2018

#1**+2 **

A chord of a circle is a straight line segment whose endpoints both lie on the circle.

More generally, a chord is a line segment joining two points on any curve, for instance an ellipse.

A chord that passes through a circle's center point is the circle's diameter.

Every diameter is a chord, but not every chord is a diameter.

The first choice, OH is not a chord, it is the radius of the circle.

SD is also not a chord, it is a tangent line to the circle.

OR is too, not a chord, it is also a radius.

RC is a chord, since a diameter is a chord.

:)

GYanggg
Jun 4, 2018