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Mathematics 8 Online
OpenStudy (anonymous):

Caculate the side lengths a and b and round to the two nearest decimals.

OpenStudy (anonymous):

OpenStudy (anonymous):

This is the problem I used law of sines to get it but all my answers are a tiny bit off from theirs

OpenStudy (anonymous):

This is the problem I used law of sines to get it but all my answers are a tiny bit off from theirs

OpenStudy (anonymous):

This is the problem I used law of sines to get it but all my answers are a tiny bit off from theirs

OpenStudy (anonymous):

what did you get for A and B

OpenStudy (anonymous):

Well I did a/sin58 = 8.4/sin 40 is that right?

OpenStudy (anonymous):

8.4/sin40 is 11.27 and then you would multiply it by sin 58 which makes it 11,19

OpenStudy (anonymous):

did you use the rule of: SOHCAHTOA

OpenStudy (anonymous):

no i am using law of sines a/sin a = b/sin b = c/sin c

OpenStudy (anonymous):

you just do the angle and then the side opposite that angle, but if there is another way to find the answer please tell me

OpenStudy (anonymous):

i think i know an easier way.. the missing angle is obviously 40 degrees. since you know that the length of c is 8.4, use the sin rule: a/sin a= b/sin b. fill in what you know : a/sin(58)=8.4/sin(40)

OpenStudy (anonymous):

right thats what i did but all my answers are like very close to theirs but a tad off

OpenStudy (anonymous):

Like I'll get 11.18 but their only 11 option is 11.03

OpenStudy (anonymous):

i got 11.03. idk what you did differently

OpenStudy (anonymous):

i mean 11.08

OpenStudy (anonymous):

can you show me how you did it

OpenStudy (anonymous):

to solve for a, i just done 8.4/sin(40) first. then after i get the answer to that, i multiplied it by sin(58)

OpenStudy (anonymous):

if you try the opposite like sin a/a =sinb/b instead of a/sin a and b/sin b what do you get?

OpenStudy (anonymous):

i did that too but my calculator gave me 11.19

OpenStudy (anonymous):

thats strange. well, just eliminate the answers without 11.08 with a

OpenStudy (anonymous):

all in all, my final answer is B, i got 12.93 for b

OpenStudy (anonymous):

Ok do you think you can explain how you got it?

OpenStudy (darthvader2900):

Do you want me to tag everyone here?

OpenStudy (anonymous):

what do you mean by that? Sorry Im kind of new to the website

OpenStudy (darthvader2900):

Like tagging their names. like this @frankystein3056

OpenStudy (anonymous):

of but for what reason?

OpenStudy (darthvader2900):

they should get a notification that someone tagged them so, they would come to your wuestion

OpenStudy (darthvader2900):

*question

OpenStudy (anonymous):

oh sure! Thankyou

OpenStudy (darthvader2900):

@Baby_Bear69

OpenStudy (darthvader2900):

@paki

OpenStudy (darthvader2900):

@sammixboo

OpenStudy (darthvader2900):

@sleepyjess

OpenStudy (darthvader2900):

@AnswerMyQuestions

OpenStudy (darthvader2900):

@rational

OpenStudy (darthvader2900):

@Haseeb96

OpenStudy (darthvader2900):

@welshfella

OpenStudy (darthvader2900):

@geerky42

OpenStudy (darthvader2900):

@gorv

OpenStudy (darthvader2900):

@Preetha

OpenStudy (anonymous):

you dont have to tag everyone! Thankyou!

OpenStudy (darthvader2900):

no one is coming here :(

OpenStudy (darthvader2900):

one more :) @EclipsedStar

OpenStudy (anonymous):

baby bear did do you agree that it is b, and if so can you explain that to me?

OpenStudy (anonymous):

if not B, then D

OpenStudy (darthvader2900):

@nincompoop

OpenStudy (anonymous):

i may have done them backwards, idk until i get approval by someone else

OpenStudy (anonymous):

thanks I hope someoone else will approve it, Im not good with trig

OpenStudy (anonymous):

Are you good at this @Baby_Bear69

OpenStudy (baby_bear69):

I dunno this stuff .-. sorry

OpenStudy (anonymous):

its fine

OpenStudy (anonymous):

@RBauer4

OpenStudy (anonymous):

@Hoslos

OpenStudy (anonymous):

@aureobs

OpenStudy (anonymous):

i know for sure that its either B or D. but i just am not sure of which :/

OpenStudy (anonymous):

@purplestudyowl

OpenStudy (anonymous):

@iambatman @igreen

OpenStudy (anonymous):

@hero

OpenStudy (anonymous):

@anyone!!!!!

OpenStudy (anonymous):

#help

OpenStudy (anonymous):

wait for which equation did you get 1294?

OpenStudy (anonymous):

like was it over b or over a

OpenStudy (anonymous):

then well know which it is what sin did you use with it

OpenStudy (anonymous):

if u got it for b its b if for a its d

OpenStudy (anonymous):

hello @tylermcmullen23

OpenStudy (anonymous):

It was b thankyou so much

OpenStudy (anonymous):

no problem!

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