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opp. S. 63. 16. RT. ST. =. =. =. 0.9692. hyp. SR. 65. SR. 65. opp. R. =. =. =. 0.2462. hyp. EXAMPLE 1. Find sine ratios. Find sin S and sin R . Write each answer as a fraction and as a decimal rounded to four places. SOLUTION. sin S. sin R. opp. X.
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opp. S 63 16 RT ST = = = 0.9692 hyp SR 65 SR 65 opp. R = = = 0.2462 hyp EXAMPLE 1 Find sine ratios Find sin Sand sin R. Write each answer as a fraction and as a decimal rounded to four places. SOLUTION sin S sin R
opp. X 8 15 ZY XZ = = = 0.4706 hyp XY 17 XY 17 opp. Y = = = 0.8824 hyp for Example 1 GUIDED PRACTICE Find sin Xand sin Y. Write each answer as a fraction and as a decimal. Round to four decimal places, if necessary. SOLUTION sin X sin Y
opp. X 15 20 ZY XZ = = = 0.6 hyp XY 25 XY 25 opp. Y = = = 0.8 hyp for Example 1 GUIDED PRACTICE Find sin Xand sin Y. Write each answer as a fraction and as a decimal. Round to four decimal places, if necessary. SOLUTION sin X sin Y