Question 253215
use the distance formula to decide wheather pq=qr 
p(4,-4)
q(1,-3)
r(-1,-3
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{{{pq = sqrt(diffy^2 + diffx^2)}}}
{{{pq = sqrt(9 + 1)}}}
{{{pq = sqrt(10)}}}
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{{{qr = sqrt(diffy^2 + diffx^2)}}}
{{{qr = sqrt(4 + 0)}}}
qr = 2
Not the same.