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