4.+Ms.+Lewis+Example

Perpendicular Lines

__**Objective:**__ Students will be able to identify perpendicular lines and their properties __**Created by:**__ Ms. Lewis


 * __Explanation:__**
 * Perpendicular lines are two lines that intersect to form a right angle.
 * Perpendicular lines are represented with an upside "T". (Example: [[image:Picture_5.png width="47" height="41"]]
 * A right angle is an angle that measures 90 degrees.
 * All right angles are congruent



Watch this to see Perpendicular lines in action!

media type="custom" key="6388907"

Samples:

1.)
 * Steps || Expanantion ||
 * 36 + 9y = 90 || Due to the fact that line A and Line B are perpendicular they equal 90 degrees ||
 * -36 -36 || Subtract 36 to each side to solve for y. ||
 * 9y = 54 || Reduce ||
 * /9 /9 || Divide each side by 9 to isolate y ||
 * y = 6 || Answer! ||

Practice: