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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 = opp. S hyp = RT SR = 63 65 0.9692 sin R = opp. R hyp = ST SR = 16 65 0.2462

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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. - PowerPoint PPT Presentation

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Page 1: EXAMPLE 1

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 = opp. Shyp

= RTSR = 63

65 0.9692

sin R = opp. Rhyp

= STSR = 16

65 0.2462

Page 2: EXAMPLE 1

GUIDED PRACTICE for Example 1

Find sin X and sin Y. Write each answer as a fraction and as a decimal. Round to four decimal places, if necessary.

SOLUTION

sin X = opp. Xhyp

= ZYXY = 8

17 0.4706

sin Y = opp. Yhyp

= XZXY = 15

17 0.8824

Page 3: EXAMPLE 1

GUIDED PRACTICE for Example 1

Find sin X and sin Y. Write each answer as a fraction and as a decimal. Round to four decimal places, if necessary.

SOLUTION

sin X = opp. Xhyp

= ZYXY = 15

25 0.6

sin Y = opp. Yhyp

= XZXY = 20

25 0.8