#bearings & trigonometry 10th grade

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pale girder
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i need help seeing if this correct

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lyric orioleBOT
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unborn parcel
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you should try checking them yourself btw by trying to reverse engineer the problems

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assume you know the answer and not one of the unknowns in the question and see if it checks out

pale girder
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what do they mean then? isn’t it 9km or is the diagram bad

unborn parcel
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west

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like

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270 bearing

pale girder
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ik that but shouldn’t it be a side if it’s in km?

unborn parcel
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yup

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it is

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it’s like the plane question

pale girder
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oh okay tysm

unborn parcel
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if i wanna go to city B

pale girder
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i should find the base then right

unborn parcel
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how many km west do i go

pale girder
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okay tysm it makes sm more sense now lol

unborn parcel
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np :D

pale girder
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but i still have a question how can i do reverse engineering sorry

unborn parcel
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and solve for something else in the question that’s already been said

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so for q1

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let’s say you know the height of the tower and the distance to the tower

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and then

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solve for the clinometer reading

pale girder
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sorry what’s clinometer

unborn parcel
pale girder
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oh sorry 😭

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and mb this is angle of elevation and depression

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this is what i did for q 4

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but i use the reserve engineering and it does not make sense