Chapter 6 Vocab Flashcards
Equiangular Polygon
An equiangular polygon is a polygon whose angles are all congruent.
Regular Polygon
A regular polygon is a polygon that is both equilateral and equiangular. Its center is the point that is equidistant from its vertices.
Parallelogram
A parallelogram is a quadrilateral with two pairs of parallel sides. You can choose any side to be the base. An altitude is any segment perpendicular to the line containing the base drawn from the side opposite the base. The height is the length of an altitude.
Opposite Sides
Opposite sides of a quadrilateral are two sides that do not share a vertex.
Opposite Angles
Opposite angles of a quadrilateral are two angles that do not share a side.
Consecutive Angles
Consecutive angles of a polygon share a common side.
Rhombus
A rhombus is a parallelogram with four congruent sides.
Rectangle
A rectangle is a parallelogram with four right angles.
Square
A square is a parallelogram with four congruent sides and four right angles.
Trapezoid
A trapezoid is a quadrilateral with exactly one pair of parallel sides.
Bases
The parallel sides of a trapezoid.
Legs
The nonparallel sides are called the legs of the trapezoid.
Base Angle
Each pair of angles adjacent to a base are base angles of the trapezoid.
Isosceles Trapezoid
An isosceles trapezoid is a trapezoid whose nonparallel opposite sides are congruent.
Midsegment of a Trapezoid
The midsegment of a trapezoid is the segment that joins the midpoints of the nonparallel opposite sides of a trapezoid.
Kite
A kite is a quadrilateral with two pairs of consecutive sides congruent and no opposite sides congruent.
Coordinate Proof
In a coordinate proof, a figure is drawn on a coordinate plane and the formulas for slope, midpoint, and distance are used to prove properties of the figure.
Equilateral Polygon
An equilateral polygon is a polygon whose sides are all congruent.
