Expression 18: polygon left parenthesis, "D" , "E" , right parenthesispolygonD,E
18
Expression 19: polygon left parenthesis, "A" , "B" , "C" , right parenthesispolygonA,B,C
19
Expression 20: left parenthesis, "E" Subscript, 1 , Baseline plus "R" cos "t" , "E" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisE1+Rcost,E2+Rsint
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤
domain t Maximum: 360360
20
Expression 21: left parenthesis, "D" Subscript, 1 , Baseline plus "R" cos "t" , "D" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisD1+Rcost,D2+Rsint
00
domain t Minimum:
less than or equal to "t" less than or equal to≤t≤