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math
geometry
| Question | Answer |
|---|---|
| a segment whose endpoints lie on a circle | chord |
| a chord that contains the center of a circle | diameter |
| a line that contains a chord | secant of a circle |
| a line that lies in the plane of a circle and that intersects the circle at exactly one point (point of tangency) | tangent to a circle |
| the set of all points in a plane at a given distance from a given point in the plane | circle |
| a segment from a point on a circle or a sphere to the center | radius |
| circles with the same radius | congruent circles |
| circles that lie in the same plane that share the same center | concentric circles |
| angle whose vertex lies on a circle and whose sides contain chords of the circle | inscribed angle |
| angle whose vertex is the center of a circle and whose sides contains radii of the circle | central angle |
| distance around a circle, that is, the perimeter of a circle | circumference |
| a fraction of the circumference of a circle defined by the arc | arc length |
| two points on a circle and the continuous part of the circle between the two points | arc of a circle |
| an arc of a circle whose endpoints are the endpoints of a diameter | semicircle |
| an arc of a circle whose length is less than the length of a semicircle of the circle | minor arc |
| an arc of a circle whose length is greater than the length of a semicircle of the circle | major arc |