In ARST ZR 63 ZT 90 RS 23 and ST 10 4 Which ratios are correct 23 RT O csc 63 O csc 27 O csc 27 csc 63 RT 23 E 23 RT RT 23 sec 63 sec 27 sec 27 sec 63 23 10 4 and cot27 10 4 23 3 and Cot63 23 10 4 and cot63 10 4 23 and cot27 0 a 10 4 RT 10 4 RT RT 10 4 RT 10 4