Difference between revisions of "2001 PMWC Problems"

(Problem T9)
(Problem I14)
 
(One intermediate revision by the same user not shown)
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== Problem I11 ==
 
== Problem I11 ==
  
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<asy>
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size(8cm);
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defaultpen(fontsize(11));
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pair A,B,C,D;
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A=origin;
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B=(0.523713039560712, 0.150288579021811);
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C=(0.564402523837359, 1.185901582062919);
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D=(-0.640531236354945, 1.247592090482351);
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pair Ap,Bp,Cp,Dp;
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Ap=rotate(180,B)*A;
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Bp=rotate(180,C)*B;
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Cp=rotate(180,D)*C;
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Dp=rotate(180,A)*D;
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draw(A--Ap--Bp--Cp--Dp--D--C--B);
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draw(Dp--Ap);
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draw(Bp--C);
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draw(Cp--D);
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label("$A$",A,SW);
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label("$B$",B,S);
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label("$C$",C,E);
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label("$D$",D,N);
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label("$A'$",Ap,unit(Ap));
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label("$B'$",Bp,unit(Bp));
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label("$C'$",Cp,W);
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label("$D'$",Dp,unit(Dp));
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//Credit to dasobson for the diagram</asy>
 
[[2001 PMWC Problems/Problem I11|Solution]]
 
[[2001 PMWC Problems/Problem I11|Solution]]
  
Line 97: Line 123:
 
== Problem I14 ==
 
== Problem I14 ==
  
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<asy>
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size(9cm);
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real horiscale=11/8;
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for(int i = 0; i < 4; ++i)
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{
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for(int j = 0; j < 3; ++j)
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{
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draw((i*horiscale,j)--((i+1)*horiscale,j)--((i+1)*horiscale,j+1)--(i*horiscale,j+1)--cycle);
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if((i == 0 && j == 1) || (j == 0 && i > 0) || (i == 2 && j == 2))
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{
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label( "$\bullet$",((i*horiscale,j)+((i+1)*horiscale,j)+((i+1)*horiscale,j+1)+(i*horiscale,j+1))/4 );
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}
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else
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{
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label( "$\circ$",((i*horiscale,j)+((i+1)*horiscale,j)+((i+1)*horiscale,j+1)+(i*horiscale,j+1))/4 );
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}
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}
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}
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draw(origin--(-1.3*3,0)--(-1.3*3,3)--(0,3)--cycle);
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label("Hotel",(-1.3*3/2,5/2));
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label("This side up",(-1.3*3/2,3/2));
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label("(This is an example of one possibility)", ((-1.3*3+1.3*4)/2,-.4),fontsize(11));
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//Credit to dasobson for the diagram</asy>
 
[[2001 PMWC Problems/Problem I14|Solution]]
 
[[2001 PMWC Problems/Problem I14|Solution]]
  

Latest revision as of 20:24, 21 April 2014