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Mathematics 11 Online
OpenStudy (anonymous):

In △JKL, what is the length of ? 33square root 3 66 33 square root 12 16.5

OpenStudy (anonymous):

OpenStudy (anonymous):

third option is square root 2 not 12

hartnn (hartnn):

length of what?

OpenStudy (anonymous):

2nd

OpenStudy (anonymous):

the triangle i attached

hartnn (hartnn):

plz,recheck the question,there cannot be length of triangle there is length of some side which is mentioned in the original question,which u have not stated here.

OpenStudy (noelgreco):

In a 30-60-90 triangle the hypotenuse is twice as long as the short leg, and the longer leg is sqrt3 times the short leg.

OpenStudy (anonymous):

oh what is the length of KL sorry

OpenStudy (anonymous):

KL

OpenStudy (anonymous):

@hartnn

OpenStudy (noelgreco):

Well, is that the longer leg, or the hypotenuse?

OpenStudy (anonymous):

i have no clue lol they want to know the length of KL

hartnn (hartnn):

well,do u know how to calculate tan 30 in that triangle?

OpenStudy (anonymous):

no

hartnn (hartnn):

ok,tan x is the ratio of opposite side to adjacent side ratio. what is the opposite side of 30 angle?

OpenStudy (anonymous):

60?

hartnn (hartnn):

side opposite to 30 is KJ=33 ok?

hartnn (hartnn):

side adjacent to 30 is KL which u have to find.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

i think the answer is option 66? is that correct?

OpenStudy (anonymous):

33 square root of 2 will be the answer

OpenStudy (anonymous):

oh ok

hartnn (hartnn):

lets not guess and come up to sure answer so tan 30 = KJ/KL=1/ root 3 now can u find KL ?

OpenStudy (anonymous):

@hartnn its NOT a guess

hartnn (hartnn):

i was not referring to your answer.

OpenStudy (anonymous):

ohh nevermind then

OpenStudy (anonymous):

was i correct is it 66?

hartnn (hartnn):

nopes, KL=KJ root 3=33 root 3 is your final answer.

OpenStudy (anonymous):

oh ok

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