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Mathematics 16 Online
OpenStudy (anonymous):

An observer (O) is located 400 feet from a building (B). The observer notices a kite (K) flying at a 29° angle of elevation from his line of sight. How high is the kite flying over the building? You must show all work and calculations to receive full credit.

OpenStudy (anonymous):

OpenStudy (anonymous):

@UnkleRhaukus @Luigi0210 @LastDayWork

OpenStudy (lastdaywork):

You just need to find 'h' Tell me the appropriate trigonometry formula..

OpenStudy (anonymous):

that last question was hard for me sorry for not cooperating

OpenStudy (lastdaywork):

No problem :)

OpenStudy (anonymous):

what trigonometry formula do i use i don't know what to use:(

OpenStudy (lastdaywork):

|dw:1392292611834:dw| sin x = P/H cos x = B/H tan x = P/B cosec x = 1 / sin x sec x = 1/ cos x cot x = 1 / tan x Now can you tell me which trigonometric ratio should we use in this question ??

OpenStudy (anonymous):

um um um um i know this its like on the tip of my toungue

OpenStudy (lastdaywork):

Take your time ;)

OpenStudy (anonymous):

is it like cos x 90- something im not really sure how to put it

OpenStudy (lastdaywork):

We have the value of B So we need a function that tells us the value of P/B Which one is it ??

OpenStudy (anonymous):

is thre like choices you can give me ...

OpenStudy (lastdaywork):

I already defined all the trigonometric ratios in my 2nd last post.

OpenStudy (anonymous):

im lost so what are we trying to prove here

OpenStudy (anonymous):

i just want a few steps to get to the answer

OpenStudy (lastdaywork):

Use h = 400 * tan(29)

OpenStudy (anonymous):

so i put in the calculator 400 *tan(29)

OpenStudy (lastdaywork):

Make sure the calculator takes argument in degrees..

OpenStudy (anonymous):

ok

OpenStudy (lastdaywork):

There is a difference between 29 degree and 29 radian

OpenStudy (anonymous):

is it 354.857137519

OpenStudy (lastdaywork):

Your calculator took 29 radian See this - http://www.wolframalpha.com/input/?i=%3D400+*+tan%2829%29&a=*C.tan-_*Function.dflt-&a=TrigRD_D

OpenStudy (anonymous):

is the answer that long decimal

OpenStudy (lastdaywork):

h = 221.7 :)

OpenStudy (anonymous):

thank you sir :)

OpenStudy (lastdaywork):

:)

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