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25 Cards in this Set
- Front
- Back
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Median (triangle) |
A line segment from a vertex to the midpoint of the opposite side (find midpoint, join, find equation) |
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Centroid |
Where all three medians of a triangle intersect or the center of the circle |
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Altitude |
The perpendicular line segment from a vertex to the line that contains the opposite side (determine midpoint and slope of line, draw perpendicular line through midpoint, determine equation with slope and midpoint) |
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Orthocentre |
Where three altitudes intersect in a triangle |
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Perpendicular bisector |
A line segment that is perpendicular to a segment at its midpoint (determine slope of line, draw perpendicular line through midpoint, determine equation with slope and midpoint) |
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Circumcentre |
Where all three right bisectors intersect |
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Equation of a circle |
X squared plus Y squared equals radius squared |
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A chord |
Whose line segment are on the circle |
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Factored form |
Y=a(x-r)(x-s) |
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Standard form |
Y=ax2+bx+c |
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Vertex form |
Y=a(x-h)2+k |
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2 or more equations that intersect ALWAYS |
Same m Same y-intercept |
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2 or more equations that intersect once |
Different m Different y-intercept |
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2or more equations that intersect never |
Same m Different y-intercept |
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Parallelogram |
Sides are parallel and equal |
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Rectangle |
So parallelogram, two pairs of equal sides, four right angles |
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Rhombus |
Also parallelogram, four equal sides, two pairs of parallel sides |
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Square |
Also parallelogram and rhombus, four right angles |
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Trapezoid |
One pair of parallel sides |
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Kite |
Two pairs of equal sides and adjacent sides |
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Circle |
Set of points on a plane that are the same distance from a point (center) |
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Radius |
Distance from a fixed point on the circle to the center |
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Chord |
A line segment whose endpoints are on the circle |
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Foil |
First term Outerterm Inner term Last term |
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Conjugate |
a+b is the conjugate of a-b |
