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briana.img
 one year ago
How to find the angle measure of T?
briana.img
 one year ago
How to find the angle measure of T?

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briana.img
 one year ago
Best ResponseYou've already chosen the best response.0I have no idea how to solve this since there's no other angle measure

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Try the law of cosines. Do you know it?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Here is the Law of Cosines

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@wolf1728 are you sure thats it? i thought it was a^2=b^2+c^22bc cosa ???

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0In your problem, let the three sides be t=7, r=11, s=10. Then the law of cosines becomes\[t ^{2}=r ^{2}+s ^{2}2rs \cos \left( T \right)\]

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2ospreytriple's equation is better to use because itis written in terms of r, s and t

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple would i just plug in the numbers from the triangle???

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Rearranging, you get\[T=\cos ^{1}\left(\frac{ r ^{2} +s ^{2}t ^{2}}{ 2rs }\right)\]

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple i'm really confused on how i would get a real answer out of that equation :(

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just plug in the lengths of sides r, s, & t from the triangle.

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple oh okay that's what i was wondering lmao

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What do you get for an answer?

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple 45.57

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Not what I get. You want to try it again?

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple i got 63.25 :(

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple i got 63.25 :(

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple T=10? r=7? s=11?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No. t=10. You are trying to find angle T.

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2briana r^2 = 121 s^2 = 100 t^2 = 49 r^2 + s^2 t^2 = 172 agreed?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2I think having 2 people explain things to a third gets a bit confusing good luck briana and osprey :)

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple i listed those numbers because those are the ones you substitute in, right??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok. Evaluate the above equation for T by using the values of r, s, & t from the triangle.

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple i know but i'm just asking if those are the numbers i use ??? like those are the correct ones for the substitution

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I believe those are the side lengths from the triangle, yes.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[T=\cos ^{1}\left( \frac{ 11^{2}+10^{2} 7^{2}}{ 2\left( 11 \right)\left( 10 \right) } \right)\]

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple yeah i jsut did that and my answer came out to be 63.25 again

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What do you get for the value of the numerator?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Not quite.\[11^{2}+10^{2}7^{1}=121+10049= ?\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Should be 7^2. Sorry.

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple oh oops 172

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Great. Now the denominator is\[2\left( 11 \right)\left( 10 \right)=?\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Terrific so\[T=\cos ^{1}\left( \frac{ 172 }{ 220 } \right)=?\]

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple the calculator i'm using says 63.25???

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple wait nevermind 38.64

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Now you got it. Good job.

briana.img
 one year ago
Best ResponseYou've already chosen the best response.0@ospreytriple sorry fro taking so long :( this unit is really messing me up

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You're welcome. Those pesky calculators :)
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