Which statement accurately defines a chord?

Which statement accurately defines a chord?

• A. The straight line joining two points on a circle
• B. The straight line tangent to the circle at a single point
• C. The radius extended to the circumference
• D. The distance around the circle

Answer: (A)

A chord is the straight line segment that connects two points on a circle. The statement describes that idea directly: a line segment joining two points on the circle is a chord. It’s the part of the line between those two points, not the entire infinite line that could extend beyond the circle. This differs from a tangent, which just touches the circle at one point; a radius, which goes from the center to the circle’s edge; and the circumference, which is the distance around the circle. If the line between the two points goes through the center, that special case is a diameter, which is still a chord.

A chord is the straight line segment that connects two points on a circle. The statement describes that idea directly: a line segment joining two points on the circle is a chord. It’s the part of the line between those two points, not the entire infinite line that could extend beyond the circle. This differs from a tangent, which just touches the circle at one point; a radius, which goes from the center to the circle’s edge; and the circumference, which is the distance around the circle. If the line between the two points goes through the center, that special case is a diameter, which is still a chord.