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OpenStudy (anonymous):
he figure below shows a bamboo structure. What is the length of NB? Show all the steps you used to find your answer.
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OpenStudy (anonymous):
OpenStudy (mathmagician):
1. BN=sqrt(81-25)=sqrt(56) 2. sin(ABN)=5/9 =>angle ABN=asin(5/9)=33.75 degrees 3. Angle NBC=90-33.75=56025 degrees 4. tan(NBC)=NC/NB=>NC=tan(56.25)*sqrt(56)=11.2 feets
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