(In reply to 3 Solutions to an impossible task
This is implies PQ=√(85±42√2)
But 85±42√2 is irrational and so it cannot be written as X/Y.
The given task is impossible.
A very small point: PR=QR=√(85+42√2). PQ= sqrt(170+84sqrt(2)), close to sqrt(47651/165), that is 16.9939 and change.
Posted by broll
on 2016-07-04 02:37:29