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:
*A right angle is an angle that measures 90 degrees.
*All right angles are congruent

Lines A and B are Perpendicular

Watch this to see Perpendicular lines in action!



Samples:

1.)

Find the value of y.

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: