Fraction = 0.692658471061| Desmos

式15: "L" Subscript, 2 , Baseline equals 3 "R" Subscript, 1 , Baseline

式16: "M" Subscript, 1 , Baseline equals "R" Subscript, 1 , Baseline

式17: "M" Subscript, 2 , Baseline equals "R" Subscript, 1 , Baseline

式18: "N" Subscript, 1 , Baseline equals 3 "R" Subscript, 1 , Baseline

式19: "N" Subscript, 2 , Baseline equals "R" Subscript, 1 , Baseline

Graphs

式21: left parenthesis, "L" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "L" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis

式22: left parenthesis, "N" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "N" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis

式23: left parenthesis, "M" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "M" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis

式24: left parenthesis, "L" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "L" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis

式25: left parenthesis, "N" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "N" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis

式26: left parenthesis, "M" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "M" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis

式27: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesis

式28: polygon left parenthesis, "A" , "C" , right parenthesis

式29: polygon left parenthesis, "A" , "B" , right parenthesis

Points

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