Classifying Parallelograms Using Slope
View the Lesson | MATHguide homepage Updated March 18th, 2018


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Given:Quadrilateral A(-1, 4), B(5, -8), C(11, -5), D(5, 7)
  
Slope Formula
  
Problem:Determine the slope of all sides and the two diagonals to best classify quadrilateral ABCD.
Sides
mAB =  
mBC =  
mCD =  
mAD =  

Diagonals
mAC =  
mBD =  
 
Classification: