Uttryck 14: left parenthesis, "x" Subscript, 1 , Baseline plus left parenthesis, "x" Subscript, 2 , Baseline minus "x" Subscript, 1 , Baseline , right parenthesis "t" , "y" Subscript, 1 , Baseline plus left parenthesis, "y" Subscript, 2 , Baseline minus "y" Subscript, 1 , Baseline , right parenthesis "t" , right parenthesisx1+x2−x1t,y1+y2−y1t
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Uttryck 15: left parenthesis, "x" Subscript, 2 , Baseline "t" , "y" Subscript, 2 , Baseline "t" , right parenthesisx2t,y2t
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Uttryck 16: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesisRcost,Rsint
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Uttryck 17: left parenthesis, "R" Subscript, "I" "n" "s" "c" "r" "i" "b" "e" "d" , Baseline cos "t" , "R" Subscript, "I" "n" "s" "c" "r" "i" "b" "e" "d" , Baseline sin "t" , right parenthesisRInscribedcost,RInscribedsint
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Uttryck 18: left parenthesis, "x" Subscript, 1 , Baseline , "y" Subscript, 1 , Baseline , right parenthesisx1,y1
18
Beregninger
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Uttryck 20: "S" Subscript, "u" "m" "A" "n" "g" "l" "e" "s" , Baseline equals 180 times left parenthesis, "n" minus 2 , right parenthesisSumAngles=180·n−2
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Uttryck 21: "E" Subscript, "n" "s" "v" "i" "n" "k" "l" "e" "r" , Baseline equals StartFraction, "S" Subscript, "u" "m" "A" "n" "g" "l" "e" "s" , Baseline Over "n" , EndFractionEnsvinkler=SumAnglesn
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Uttryck 22: "P" Subscript, "S" "i" "d" "e" , Baseline equals 2 "R" cosine StartFraction, left parenthesis, "n" minus 2 , right parenthesis pi Over 2 "n" , EndFractionPSide=2Rcosn−2π2n
Uttryck 24: "R" Subscript, "I" "n" "s" "c" "r" "i" "b" "e" "d" , Baseline equals "R" sine StartFraction, left parenthesis, "n" minus 2 , right parenthesis pi Over 2 "n" , EndFractionRInscribed=Rsinn−2π2n
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Uttryck 25: "P" Subscript, "A" "r" "e" "a" , Baseline equals StartFraction, "n" left parenthesis, "P" Subscript, "S" "i" "d" "e" , Baseline times "R" Subscript, "I" "n" "s" "c" "r" "i" "b" "e" "d" , Baseline , right parenthesis Over 2 , EndFractionPArea=nPSide·RInscribed2