Math, asked by Abhay447, 1 year ago

the angle of elevation theta off the top of a Lighthouse as seen by a person on the ground is such that tan theta is equal to 5/12 when the person moves a distance of 240 M towards the Lighthouse the angle of elevation becomes becomes Alpha such that tan Alpha equal to 3/4. find the height of the Lighthouse

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Answered by DrJakaal

Height = 225M is the answer

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Abhay447: samajh nhi aaya

Abhay447: sahi se batao

DrJakaal: statement mai likhaa hai ki tan alpha ki value 5/12 hai , to maine mana heihht H hogi or Base B

DrJakaal: iseliye vo equation first ayii

DrJakaal: then uske baad usne kaha ki apne point se vo 240 m age a gaya , ab lakin naya tan theta ki value means , Jo base pehla thaa vo to 240 m kam ho gaya naa , iseliye tan theta = H/ B-240 likhaa

DrJakaal: ab simple 2 equation hai , or 2 variable , upar equation 1 se B is value nikal k equation 2 mai put kr di

DrJakaal: I hope you understand now

Abhay447: ty sir.......

Answered by Rememberful

$\textbf{Answer is in Attachment !}$

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