式7: "P" Subscript, 2 , Baseline equals polygon left parenthesis, left parenthesis, 0 , "a" , right parenthesis , left parenthesis, 0 , StartFraction, "a" Over 2 , EndFraction , right parenthesis , "C" , left parenthesis, StartFraction, "b" Over 14 , EndFraction , "a" , right parenthesis , right parenthesisP2=polygon0,a,0,a2,C,b14,a
7
式8: "P" Subscript, 3 , Baseline equals polygon left parenthesis, left parenthesis, StartFraction, "b" Over 14 , EndFraction , 0 , right parenthesis , "C" , left parenthesis, StartFraction, 9 "b" Over 14 , EndFraction , 0 , right parenthesis , right parenthesisP3=polygonb14,0,C,9b14,0
8
式9: "P" Subscript, 4 , Baseline equals polygon left parenthesis, left parenthesis, StartFraction, "b" Over 14 , EndFraction , "a" , right parenthesis , "C" , left parenthesis, StartFraction, 9 "b" Over 14 , EndFraction , "a" , right parenthesis , right parenthesisP4=polygonb14,a,C,9b14,a
9
式10: "P" Subscript, 5 , Baseline equals polygon left parenthesis, left parenthesis, StartFraction, 9 "b" Over 14 , EndFraction , 0 , right parenthesis , "C" , left parenthesis, "b" , StartFraction, 3 "a" Over 14 , EndFraction , right parenthesis , left parenthesis, "b" , 0 , right parenthesis , right parenthesisP5=polygon9b14,0,C,b,3a14,b,0
10
式11: "P" Subscript, 6 , Baseline equals polygon left parenthesis, left parenthesis, StartFraction, 9 "b" Over 14 , EndFraction , "a" , right parenthesis , "C" , left parenthesis, "b" , StartFraction, 11 "a" Over 14 , EndFraction , right parenthesis , left parenthesis, "b" , "a" , right parenthesis , right parenthesisP6=polygon9b14,a,C,b,11a14,b,a
11
式12: "P" Subscript, 7 , Baseline equals polygon left parenthesis, "C" , left parenthesis, "b" , StartFraction, 3 "a" Over 14 , EndFraction , right parenthesis , left parenthesis, "b" , StartFraction, 11 "a" Over 14 , EndFraction , right parenthesis , right parenthesisP7=polygonC,b,3a14,b,11a14
