Question

which of the following is best described as all the points on a plane that are the same distance from a single point called a center?
a. chord
b. circle
c. diameter
d. ellipse

Explanation:

• Option A: A chord is a line segment connecting two points on a circle, not all points equidistant from a center.
• Option B: A circle is defined as the set of all points in a plane that are at the same distance (radius) from a given point (center).
• Option C: A diameter is a chord passing through the center, not the set of all equidistant points.
• Option D: An ellipse has two foci, and points on it have a sum of distances to the foci constant, not a single center with equal distance.

Answer:

B. Circle