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38 Cards in this Set

  • Front
  • Back
exterior angle
an angle formed by a side and an extension of an adjacent side
remote interior angles
the two nonadjacent angles of an exterior angle
corollary
a statement that follows directly from a theorem
equilateral triangle
a triangle whose sides are all congruent
isosceles triangle
a triangle with at least two congruent sides.
scalene triangle
a triangle with no congruent sides
equilangular triangle
a triangle whose angles are all congruent
acute triangle
a triangle with three acute angles
right triangle
a triangle that contains one right angle
obtuse triangle
a triangle with one obtuse angle
polygon
a closed plane figure with at least three sides
triangle
a polygon with three sides
quadrilateral
a polygon with four sides
pentagon
a polygon with five sides
hexagon
a polygon with six sides
octagon
a polygon with eight sides
decagon
a polygon with ten sides
equilateral polygon
a polygon whose sides are all congruent
equiangular polygon
a polygon whose angles are all congruent
regular polygon
a polygon that is both equilateral and equiangular
parallelogram
a quadrilateral with two pairs of parallel sides
rhombus
a parallelogram with four congruent sides
rectangle
a parallelogram with four right angles
square
a parallelogram with four congruent sides and four right angles
kite
a quadrilateral with two pairs of congruent adjacent sides and no opposite sides congruent
trapezoid
a quadrilateral with exactly one pair of parallel sides (the bases)
isosceles trapezoid
a trapezoid whose legs are congruent
circle
the set of all points in a plane that are a given distance, the radius, from a given point, the center
central angle
an angle whose vertex is the center of the circle
congruent circles
two circles with congruent radii
congruent polygon
two polygons that have corresponding sides and angles that are congruent
arc
part of a circle
diameter
a segment that contains the center of the circle and whose endpoints are on the circle
Standard Form
Ax+By=C
Slope-Intercept Form
y=Mx+b
Point-Slope Form
y-y1=m(x-x1)
adjacent arcs
arcs that are on the same circle and have exactly one point in common
Formula for Slope
(y2-y1)
_______
X2-X1