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5 Written questions
5 Matching questions
 rhombus
 concave polygon
 polygon
 adjacent angles
 concentric circles
 a A closed figure in a plane, formed by connecting line segments endpoint to endpoint with each segment intersecting exactly two others.
 b An equilateral parallelogram.
 c Circles that share the same center.
 d Two nonoverlapping angles with a common vertex and one common side.
 e A polygon with at least one diagonal outside the polygon.
5 Multiple choice questions
 Two angles whose measures have the sum 180°.
 A triangle with three acute angles.
 The angle between the two congruent sides (of an isosceles triangle)
 A triangle whose sides are congruent.
 A polygon with 11 sides
5 True/False questions

obtuse triangle → A triangle with three acute angles.

congruent segments → Two or more segments that have the same measure or length.

convex polygon → A polygon with no diagonal outside the polygon.

rectangle → An equiangular parallelogram.

skew lines → An undefined term thought of as a flat surface that extends infinitely along its edges. It has length and width but no thickness, so it is twodimensional.