Expression 27: polygon left parenthesis, "A" , "B" , "C" , "D" , right parenthesispolygonA,B,C,D
27
Expression 28: left parenthesis, "P" Subscript, 1 , Baseline plus "R" cos "t" , "P" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisP1+Rcost,P2+Rsint
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤