Question 1131253
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Then  PN = {{{sqrt(abs(NR) * abs(QN))}}} = {{{sqrt(12*6)}}} = {{{sqrt(72)}}} = {{{6*sqrt(2)}}};


      PR = {{{sqrt(abs(PN)^2 + abs(NR)^2)}}} = {{{sqrt(72 + 6^2)}}} = {{{sqrt(72 + 36)}}} = {{{sqrt(108)}}} = {{{6*sqrt(3)}}};


      PQ = {{{sqrt(abs(PN)^2 + abs(QN)^2)}}} = {{{sqrt(72 + 12^2)}}} = {{{sqrt(72 + 144)}}} = {{{sqrt(216)}}} = {{{6*sqrt(6)}}}.
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