SOLUTION: Use the Distance Formula to decide whether PQ = QR.
P (4,-4)
Q (1,-6)
R (-1,-3)
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Question 155793This question is from textbook Mc Dougal Littell Geometry
: Use the Distance Formula to decide whether PQ = QR.
P (4,-4)
Q (1,-6)
R (-1,-3)
This question is from textbook Mc Dougal Littell Geometry
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
First lets find the length of PQ
Start with the distance formula.
Plug in , , , and .
Subtract from to get .
Subtract from to get .
Square to get .
Square to get .
Add to to get .
So the length of PQ is units
--------------------------
Now let's find the length of QR
Start with the distance formula.
Plug in , , , and .
Subtract from to get .
Subtract from to get .
Square to get .
Square to get .
Add to to get .
So the length of QR is
==================================
Answer:
Since and , this means that
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