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Geometry Regents
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Gravity
Terms in this set (15)
Quadrilateral
A four sided figure
Trapezoid
Quadrilateral with at least one pair of parallel sides
Parallelogram
Opposite sides are parallel and congruent
Diagonals bisect each other
Rectangle
Parallelogram with 4 right angles
Diagonals intersect at 90 degrees and bisect each other
Square
4 right angles
4 congruent sides
Circle Theorem (2 secants)
The whole line
The exterior part = The whole line
The exterior part
Circle Theorem (2 chords)
If the chords intersect in the circle the product of the segments of one line = the product of the segments of the other line
Circle Theorem (1 secant and 1 tangent)
The square of the tangent = the product of the whole line*the external segment
Circle Theorem (1 tangent:keeps going and 1 chord)
The angle formed by the tangent and the chord intersecting is equal to half the intercepted arc.
Equation of a Circle
(x-k)^2+(y-h)^2
Area of Sector
(Central Angle/360)
pi
r^2
Arc Length
(Central Angle/360)
2
pi*r
Rotation of 90
-y,x
Rotation of 180
-x,-y
Rotation of 270
Y,-x
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