Chapter 10 Part 1 Unit TEST: Circles

Question 36 • (OC27) GEO-1206310-S2-Degele-VOL7006P

Which is true regarding secants and chords?

Answer

Chords intersect the perimeter of a circle at two points. Secants intersect the perimeter of a circle once.

Chords intersect the perimeter of a circle at one point. Secants intersect the perimeter of a circle twice.

Chords and secants intersect the perimeter of a circle twice. Chords are segments entirely within a circle, while secants are lines or rays that extend through a circle.

Chords and secants intersect the perimeter of a circle twice. Chords are lines or rays that extend through a circle, while secants are segments entirely within a circle.

Explanation

A chord is a line segment whose endpoints lie on the circle, so it meets the circle’s perimeter at two points and stays within the circle. A secant is a line or ray that passes through the circle, meeting its perimeter at two points as well. Choice C gives both definitions correctly; choice D reverses them.

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