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

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Given:Quadrilateral A(11, 1), B(19, -4), C(27, -2), D(19, 3)
  
Slope Formula

Slope Formula
  
Problem:Determine the slope of the diagonals and the length of the diagonals to best classify quadrilateral ABCD.

Slope of Diagonals
mAC =  
mBD =  

Length of Diagonals
dAC =  
dBD =  
 
Classification: