Untitled Flashcards Set

Unit 6: Polygons

1. Diagonal - a segment that connects nonconsecutive vertices of a polygon

2. Exterior Angle Sum Theorem - the sum of the measures of the exterior angles of a polygon, one at each vertex

3. Interior Angle Sum Formula - the formula used to find the sum of the measures of the interior angles of a convex polygon

4. Isosceles trapezoid - a quadrilateral in which both pairs of base angles are congruent and the legs are congruent

5. Parallelogram - a quadrilateral that is both a rectangle and a rhombus, opposite sides are parallel

6. Quadrilateral - a polygon with 4 sides

7. Rectangle - a quadrilateral with four right angles and the diagonals are congruent

8. Regular polygon - is convex and all sides and all angles are congruent

9. Rhombus - a quadrilateral with all four sides congruent and the diagonals are perpendicular

10. Square - a quadrilateral that is both a rectangle and a rhombus with four right angles and all four sides are congruent

11. Trapezoid - a quadrilateral with exactly one pair of parallel sides

12. Kite - a quadrilateral with two distinct pairs of adjacent congruent sides

13. Median of a trapezoid - a segment that joins the midpoints of the legs of a trapezoid

14. Concave polygon - has at least one diagonal with points outside the polygon

15. Convex polygon - has no diagonals with points outside the polygon