Question 847038
{{{drawing(300,300,-2,10,-2,10,grid(1),circle(1,1,0.2),
circle(4,1,0.2),
locate(0.5,4.9,A),
locate(4.5,4.9,B),
locate(0.5,0.9,D),
locate(4.5,0.9,C),
circle(1,4,0.2),
circle(4,4,0.2),
line(1,1,4,1),
line(4,1,4,4),
line(4,4,1,4),
line(1,4,1,1))}}}
{{{AC^2=3^2+3^2}}}
{{{AC=3sqrt(2)}}}
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{{{drawing(300,300,-2,14,-2,6,grid(1),circle(1,1,0.2),
circle(13,1,0.2),
circle(13,4,0.2),
locate(0.5,4.5,A),
locate(13.5,4.5,E),
locate(0.5,0.9,B),
locate(13.5,0.9,F),
circle(1,4,0.2),
line(1,1,13,1),
line(13,1,13,4),
line(13,4,1,4),
line(1,4,1,1))}}}
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{{{drawing(300,300,-2,14,-2,6,grid(1),
circle(1,1,0.2),
circle(13,1,0.2),
circle(13,5,0.2),
locate(0.5,5.5,D),
locate(13.5,5.5,H),
locate(0.5,0.9,A),
locate(13.5,0.9,E),
circle(1,5,0.2),
line(1,1,13,1),
line(13,1,13,5),
line(13,5,1,5),
line(1,5,1,1))}}}
{{{AG^2=5^2+12^2}}}
{{{AG=sqrt(25+144)}}}
{{{AG=13}}}
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{{{cos(CAF)=AC/AG=(3*sqrt(2))/13}}}
{{{CAF=70.95}}}degrees