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Howard Geometry 11
Chapter 11 Geometry Vocabulary
| Term | Definition |
|---|---|
| Chord | A segment whose endpoints are points on a circle |
| Secant | A line that intersects a circle in two points |
| Tangent | A line in the plane of a circle that intersects the circle in exactly one point |
| Point of Tangency | The point where the tangent line intersects the circle |
| Tangent Segment | A segment in the plane of a circle that intersects the circle in exactly one point |
| Minor Arc | Written by using two points and an arc symbol above; it is smaller than a semicircle. |
| Major Arc | Written by using three points and an arc symbol above; it is larger than a semicircle. |
| Measure of a Minor Arc | Less than 180 degrees. |
| Measure of a Major Arc | Greater than 180 degrees. |
| Semicircle | The arc whose endpoints are a diameter; its measure is exactly 180 degrees |
| Congruent Circles | Two circles with the same radius. |
| Arc Length | A portion of the circumference of a circle. |
| Inscribed Angle | An angle whose vertex is on a circle and whose sides contain chords of the circle |
| Intercepted Arc | The arc that lies in the interior of an inscribed angle and has endpoints on the angle. |
| Central Angle | An angle whose vertex is at the center of a circle and whose sides are radii |
| Inscribed Polygon | A polygon whose vertices lie on a circle |
| Circumscribed | To draw a circle around a polygon such that the circle intersects all vertices of the polygon. |
| Vertex | The point where two sides of a polygon or angle intersect |
| Measure of a Semicircle | Exactly 180 degrees. |