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|dw:1437363564659:dw|
just use the tangent ratio

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though that is the angle of elevation not angle of depression

how do i solve it what equation

alpha is the angle of elevation which is 25 deg
recall tan is opp divided by adjacent

which one is adjacent

|dw:1437364051842:dw|
but that still makes that one angle 25 deg

so what do i divide by

so it didn't matter

the opp side is what I called h in the picture

anyways let me know if you need further help

i dont know what the measurement is

which one?

h is what you are solving for

remember h is the height of the tree

that is what you are solving the equation for

|dw:1437364301549:dw|

so what next

pluggin those numbers into equation I gave

then just solving it for h
and then bingo you are done

|dw:1437364501206:dw|

did you get A?

i didnt get anything yet

what i got 900. i know that isnt right

ok @GEOMETRYHELP10011 do you know how to do tan(25) in your calculator ?

no

oh that could be a big problem for solving the equation

because it does require you to type tan(25) in your calculator

you should see a button with tan on it

you should see it next to things like sin and cos

if you can't find them tell me the name of your calculator
and I can tell you where it is

i got at 16.7

ok that's great

well 16.8

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