# Polygons

### Brandi Crain, Alec Brawley - 7th

## Quadrilaterals Examples

## Parallelograms

## ParallelogramsA quadrilateral with both pair of opposite sides parallel | ## RectangleA parallelogram with 4 right angles | ## SquareA parallelogram with 4 congruent right angles 4 congruent sides |

## Parallelogram Examples

*RSBF, SF = 4x + 20 and RB = 6x - 12.*What is the length of a diagonal? 1.) Set equal to each other SF and RB. 2.) 4x + 20 = 6x - 12. (Plug in the numbers). 3.) -2x = -32 (Subtract 6x and 20 to both sides. 4.) -2x/-2 = -32/-2 (divide both sides by -2). X = 16

## The properties of parallelogram

## Parallelogram If a quadrilateral is a parallelogram, then its opposite sides are congruent | ## ParallelogramIf a quadrilateral is a parallelogram, then its consecutive angles are supplementary | ## Parallelogram If a quadrilateral is a parallelogram, then its opposite angles are congruent |

## ParallelogramIf a quadrilateral is a parallelogram, then its diagonals bisects each other | ## Parallelogram If one pair of opposite sides of a quadrilateral is both congruent and parallel, then the quadrilateral is a parallelogram. | ## Parallelogram If both pairs of opposite of a quadrilateral are congruent are congruent then the quadrilateral is a parallelogram |

## Parallelogram

## Trapezoid and Isosceles Trapezoid

## Trapezoid and Isosceles Trapezoid Example

## Kite

## Kite Example

## Embedded Video

## Works Cited

http://geometrychapter8.wikispaces.com/Trapezoid+%26+Isosceles+Trapezoid+-+P3

http://www.skyhighhobby.com/airplane-wing-geometry-and-configurations.html

N.d. *Thinglink*. Web. 19 Jan. 2016. <https://www.thinglink.com/scene/494554032191307776>.

N.d. *Imagemonument.blogspot*. Web. 19 Jan. 2016. <http://imagemonument.blogspot.com/2011/10/stepped-geometric-monuments-city-hall.html>.

N.d. *Melaniereade's Blog*. Web. 20 Jan. 2016. <https://melaniereade.wordpress.com/2011/06/

N.d. *KiteLife*. Web. 24 Jan. 2016. <http://kitelife.com/kl-archive/general-topics/kite-making-general/history-and-geometry-of-kites/>.

N.d. *Kenrockwell*. Web. 24 Jan. 2016. <http://www.kenrockwell.com/trips/2009-04-volcano/>.

Randall, Charles Ph.D. *Geometry Common Core*. N.p.: Pearson Education, 2015. Print.