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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


SlopeIntercept Form

y=Mx+b


PointSlope Form

yy1=m(xx1)


adjacent arcs

arcs that are on the same circle and have exactly one point in common


Formula for Slope

(y2y1)
_______ X2X1 