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26 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The fixed point equidistant from all points on the circle. |
Center |
Circle |
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The distance from the center to any point on the circle. |
Radius |
Circle |
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The distance across the circle through the center, equal to twice the radius. |
Diameter |
Circle |
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The perimeter or boundary line of the circle. |
Circumference |
Circle |
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A line segment whose endpoints lie on the circle. |
Chord |
Circle |
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A line that intersects the circle at two points. |
Secant |
Circle |
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A line that touches the circle at exactly one point. |
Tangent |
Circle |
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The two fixed points inside the ellipse. The sum of the distances from any point on the ellipse to the two foci is constant. |
Foci (singular: focus) |
Ellipse |
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The longest diameter of the ellipse, passing through both foci. |
Major Axis |
Ellipse |
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The shortest diameter of the ellipse, perpendicular to the major axis at the center. |
Minor axis |
Ellipse |
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The midpoint of the major and minor axes. |
Center |
Ellipse |
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The endpoints of the major axis. |
Vertices |
Ellipse |
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The endpoints of the minor axis. |
Co-vertices |
Ellipse |
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A measure of how much the ellipse deviates from being a circle, defined as the ratio of the distance between the foci to the length of the major axis. |
Eccentricity |
Ellipse |
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The two fixed points outside the hyperbola. The difference of the distances from any point on the HYPERBOLA to the two foci is constant. |
Foci (singular: focus) |
Hyperbola |
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The points on the hyperbola closest to the center, where each branch of the HYPERBOLA curves most sharply. |
Vertices |
Hyperbola |
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The midpoint between the vertices, also the midpoint between the foci. |
Center |
Hyperbola |
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The line segment that passes through the center and both vertices of the hyperbola. |
Transverse Axis |
Hyperbola |
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The line segment perpendicular to the transverse axis at the center, extending to the sides of the hyperbola. |
Conjugate Axis |
Hyperbola |
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The lines that the hyperbola approaches but never meets, defining the direction of the hyperbola's branches. |
Asymptotes |
Hyperbola |
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A measure of how much the hyperbola deviates from being a circle, defined as the ratio of the distance between the foci to the length of the transverse axis. |
Eccentricity |
Hyperbola |
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The fixed point inside the parabola. |
Focus |
Parabola |
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A fixed line outside the parabola. The parabola consists of all points that are equidistant from the focus. |
Directrix |
Parabola |
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The point where the parabola changes direction, midway between the focus and the directrix. |
Vertex |
Parabola |
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The line that passes through the vertex and the focus, dividing the parabola into two mirror-image halves. |
Axis of Symmetry |
Parabola |
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The line segment perpendicular to the axis of symmetry, passing through the focus, and whose endpoints lie on the parabola. |
Latus Rectum |
Parabola |
