example 1
DESCRIPTION
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 PresentationTRANSCRIPT
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
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
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