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Determine the value of a.pairw=(0,4);pairx=(0,0);pairy=(4,0);pairz=y+7/sqrt(2)(1,1);dot(w);dot(x);dot(y);dot(z);draw(wxyzw);draw(0.15w0.15w+0.15y0.15y);label("$W$",w,NNW);label("$X$",x,SW);label("$Y$",y,SE);label("$Z$",z,E);label("4",(w+x)/2,W);label("4",(x+y)/2,S);label("9",(w+z)/2,NNW);label("$a$",(y+z)/2,SE);label("$135$",y,NNW);

 Apr 10, 2018
edited by sageatron2000  Apr 10, 2018
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The value of a is 5 - sqrt(2).

 Nov 15, 2020

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