Expression 15: "D" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline plus "R" cosine left parenthesis, 180 minus 2 "A" Subscript, "B" "C" , Baseline , right parenthesisD1=B1+Rcos180−2ABC
equals=
4.54.5
15
Expression 16: "D" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline plus "R" sine left parenthesis, 180 minus 2 "A" Subscript, "B" "C" , Baseline , right parenthesisD2=B2+Rsin180−2ABC