#I need help solving this

52 messages · Page 1 of 1 (latest)

lusty plinthBOT
vast sail
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Do you know trigonometry?

void rune
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not too much

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just started learning it

vast sail
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what do you know so far

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as we are given an angle and a length

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and we need to determine the other length called x

void rune
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yes

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i know 2.6 is the opposite side and 69.9 is the angle

vast sail
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are you sure?

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From the perspective of B

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What is really the 2.6 length

void rune
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adjacent

vast sail
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yes

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and we are looking for the length x

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which has also a juicy name

void rune
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hypopenuse

vast sail
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yes

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hypotenuse

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so

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we have the relation

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adj and hypotenuse

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any idea which trignometric function we can use

void rune
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cosine

vast sail
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very good

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,,\cos(\alpha) = \frac{\text{ADJ}}{\text{HYP}}

past elbowBOT
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𝔸dωn𝓲²s

587715738484211754.png
vast sail
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Now we need to plug in the stuff

void rune
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yep

vast sail
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what do we get

void rune
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2.6/x

vast sail
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and alpha?

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since it's an angle

void rune
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0.343?

vast sail
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ok slow down

void rune
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cos(69.9)?

vast sail
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,,\cos(69.9^{\circ}) = \frac{2.6}{x}

past elbowBOT
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𝔸dωn𝓲²s

587715738484211754.png
vast sail
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Now we solve this for x

void rune
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ok

vast sail
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,w cos(69.9°)

past elbowBOT
void rune
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wait but 0.3

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ok yea

vast sail
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yea

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so x = 2.6/0.34

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,w x = 2.6/0.34

past elbowBOT
vast sail
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that's it

void rune
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ok

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thanks bro

vast sail
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.solved