Discovering Geometry Chapter 5 Polygon Properties

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A concave kite.

base angles (of a trapezoid)

A pair of angles with a base of the trapezoid as a common side.

trapezoid

A quadrilateral with exactly one pair of parallel sides.

kite

A quadrilateral with exactly two distinct pairs of congruent consecutive sides.

isosceles trapezoid

A trapezoid whose two nonparallel sides are congruent.

vertex angles (of a kite)

The angles between the pairs of congruent sides.

midsegment (of a trapezoid)

The line segment connecting the midpoints of the two nonparallel sides.

nonvertex angles (of a kite)

The two angles between consecutive noncongruent sides of a kite.

bases (of a trapezoid)

The two parallel sides.