10+Squares

=** __All About Squares__ ** = **By: Molly Lambert, Felicia Gottheim, Matt Columbo, and Max Llewellyn **

**The Square**
**A square is a four-sided figure with four right angles and four equal sides. ****A square has equal sides and every angle is a right angle (90°). Also opposite sides are parallel. A square also fits the definition of a rectangle (all angles are 90°), and a rhombus (all sides are equal length).
 * [[image:http://www.mathsisfun.com/images/quadrilateral-square.gif width="138" height="133" caption="Square"]] ||  ||   ||
 * ^  || [[image:http://www.mathsisfun.com/images/quadrilateral-right-key.gif width="19" height="22"]] || **means "right angle" ** ||
 * ^  || [[image:http://www.mathsisfun.com/images/quadrilateral-equal-key.gif width="19" height="19"]] || **show equal sides ** ||

Properties: **

**<span style="font-family: 'Comic Sans MS',cursive;"> __Formula's__ ** Area = s 2****<span style="font-family: 'Comic Sans MS',cursive;"> (s squared) <span style="font-family: 'Comic Sans MS',cursive; font-weight: normal;"> <span class="wiki_link">For all the mathematical statistics on squares that you could possibly need check out these links ** http://www.mathopenref.com/square.html []**
 * <span style="font-family: 'Comic Sans MS',cursive;">**<span style="font-family: 'Comic Sans MS',cursive;">The diagonals of a square bisect each other **
 * <span style="font-family: 'Comic Sans MS',cursive;">**<span style="font-family: 'Comic Sans MS',cursive;">The diagonals of a square bisect its angles. **
 * <span style="font-family: 'Comic Sans MS',cursive;">**<span style="font-family: 'Comic Sans MS',cursive;">The diagonals of a square are perpendicular. **
 * <span style="font-family: 'Comic Sans MS',cursive;">**<span style="font-family: 'Comic Sans MS',cursive;">Opposite sides of a square are both parallel and equal. **
 * <span style="font-family: 'Comic Sans MS',cursive;">**<span style="font-family: 'Comic Sans MS',cursive;">All four angles of a square are equal. //<span style="font-family: 'Comic Sans MS',cursive;">(Each is 360/4 = 90 degrees, so every angle of a square is a right angle.) //**
 * <span style="font-family: 'Comic Sans MS',cursive;">**<span style="font-family: 'Comic Sans MS',cursive;">The diagonals of a square are equal. **
 * <span style="font-family: 'Comic Sans MS',cursive;">Perimeter = 4s
 * []


 * Sample problems**
 * Using what you know about squares, and have learned from the information above, find the missing variable.

Example 1 What is the area of a square with a diagonal 12 in.? ** <span style="font-family: 'Comic Sans MS',cursive; font-size: 130%;"> Area: __12^2__ 2 Area: __144__ 2 Area: 72 inches squared** <span style="font-family: 'Comic Sans MS',cursive;">
 * Solution:


 * <span class="wiki_link"> [[image:example_2.png width="347" height="378"]]

Example 3 What is the area of a square with a perimeter of 40? **

<span style="font-family: 'Comic Sans MS',cursive; font-size: 130%;">Solution:

40/4=10 Area= 10*10 Area=100 units squared <span style="font-family: 'Comic Sans MS',cursive;">