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What is the value of y in the triangle?

Enter your answer in the box. Round your final answer to the nearest hundredth. Please explain I need help with the COS but I am pretty sure the formula is y=adjacent/hypotenuse

What is the value of y in the triangle? Enter your answer in the box. Round your final-example-1
User Cowfaboo
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2 Answers

4 votes


\huge \boxed{\sf y=6.69 \ ft}\\\\\\\displaystyle \sf Use\ the\ trigonometric\ function\ sine\\\\sin(x)=(opp)/(hyp) \\\\sin(26.5)=(y)/(15) \\\\sin(26.5)* 15=y \\\\6.69296715...=y \\\\ Round\ to\ the\ nearest\ hundredth \\\\ 6.69 \approx y

User Dbuggy
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6 votes
use trigonometry:-
sin 26.5 = y / 15 (as sin = adj / hyp)

y = 15 sin 26.5 = 6.69 feet to nearest hundredth
User Sai Kumar Reddy
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6.1k points