Math: Polygons

3 Ways to identify polygons?
- Equilateral
- Equiangular
- Regular
What does it mean when a polygon is REGULAR?

All sides and angles are congruent
Segment that joins non-consecutive vertices

Diagonals
The sum of the interior angles of a quadrilateral is always 360 degrees

Quadrilateral Interior Angle Theorem
Describe a plane figure:
(2)
- Formed by 3 or more segments
- No two sides with a common endpoint are collinear
- Each side intersects exactly 2 other sides one at each endpoint
Difference between concave and convex?

Concave has a dent
A quadrilateral having both pairs of opposite sides parallel

Parallelograms
5 Theorems about parallelograms
- Opposite sides are congruent
- Opposite angles are congruent
- Consecutive angles are supplementary
- Diagonals bisect each other
- Both pairs of opposite sides are parallel

Author

LaurenCamp29

194288

Card Set

Math: Polygons

Description

jfslakj

Updated

2013-01-21T22:37:11Z

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