Expression 6: "C" Subscript, "B" , Baseline equals left bracket, "B" . "x" , "B" . "y" , StartFraction, "d" left parenthesis, "B" , "A" , right parenthesis plus "d" left parenthesis, "B" , "C" , right parenthesis minus "d" left parenthesis, "C" , "A" , right parenthesis Over 2 , EndFraction , right bracketCB=B.x,B.y,dB,A+dB,C−dC,A2
6
Expression 7: "C" Subscript, "C" , Baseline equals left bracket, "C" . "x" , "C" . "y" , StartFraction, "d" left parenthesis, "C" , "B" , right parenthesis plus "d" left parenthesis, "C" , "A" , right parenthesis minus "d" left parenthesis, "A" , "B" , right parenthesis Over 2 , EndFraction , right bracketCC=C.x,C.y,dC,B+dC,A−dA,B2
7
Expression 8: "d" left parenthesis, "P" Subscript, 1 , Baseline , "P" Subscript, 2 , Baseline , right parenthesis equals StartRoot, left parenthesis, "P" Subscript, 2 , Baseline . "x" minus "P" Subscript, 1 , Baseline . "x" , right parenthesis squared plus left parenthesis, "P" Subscript, 2 , Baseline . "y" minus "P" Subscript, 1 , Baseline . "y" , right parenthesis squared , EndRootdP1,P2=P2.x−P1.x2+P2.y−P1.y2
8
Expression 9: 0 equals "f" left parenthesis, "C" Subscript, "A" , Baseline , right parenthesis times "f" left parenthesis, "C" Subscript, "B" , Baseline , right parenthesis times "f" left parenthesis, "C" Subscript, "C" , Baseline , right parenthesis0=fCA·fCB·fCC
9
Expression 10: "f" left parenthesis, "c" , right parenthesis equals left parenthesis, "x" minus "c" left bracket, 1 , right bracket , right parenthesis squared plus left parenthesis, "y" minus "c" left bracket, 2 , right bracket , right parenthesis squared minus "c" left bracket, 3 , right bracket squaredfc=x−c12+y−c22−c32