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Calculating Sine Ratios Examples and Practice

Learn how to find sine ratios, practice with examples, and round answers to four decimal places.

marvin-carney
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Calculating Sine Ratios Examples and Practice

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  1. 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

  2. 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

  3. 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

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