07+Parallelograms

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Parallelograms **Summary:** · **In** ** [|geometry] ** **, a parallelogram is a** ** [|quadrilateral] ** **with two pairs of** ** [|parallel] ** **sides.** · **Opposite sides of a parallelogram are equal in length.** · **Opposite angles of a parallelogram are equal in measure.** · **The area,** **//A//** **, of a parallelogram is** **//A//** **= //bh//** **, where** **//b//** **is the base of the parallelogram and** **//h//** **is its height.** · **Opposite sides of a parallelogram will never intersect.** · **The area of a parallelogram is twice the area of a triangle created by one of its diagonals.** · **The area of a parallelogram is also equal to the magnitude of the** ** [|vector cross product] ** **of two** ** [|adjacent] ** **sides.**
 * **The** ** [|diagonals] ** **of a parallelogram** ** [|bisect] ** **each other.**

**Links:** ** [] **
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 * Jamie**


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 * Cindy**

Gabby**
 * __@http://mathworld.wolfram.com/Parallelogram.html__

**Example Problems:** http://www.ies.co.jp/math/products/geo1/applets/para/para.html http://www.analyzemath.com/Geometry/parallelogram_problems.html Answer: 60º

Cindy 2)



Find D:

**answer :

**

Gabby

ABCD is a parallelogram Find x, y, and m <A Answer: x= 16 y= 20 m <A = 106*

Find X

X= 3.8