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in a 40 ^0  45^0  90^0 right triangle, the hyptoenuse is 5m. how long are the legs?
please help
 one year ago
 one year ago
in a 40 ^0  45^0  90^0 right triangle, the hyptoenuse is 5m. how long are the legs? please help
 one year ago
 one year ago

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rebecca1233Best ResponseYou've already chosen the best response.0
oops first one is 45^0 too
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
so 45^0  45^0  90^0
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
Hint: dw:1358468818520:dw
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
so what do i do? can u help me get the answer?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
The figure allows us to say \[\Large x\sqrt{2} = 5\]
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
solve for x to get your answer
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
You have to divide both sides by \(\Large \sqrt{2}\), then rationalize the denominator (if the book requires you to do it)
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
square root of 2
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
no, it's not 3
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
idk i suck at square rooting stuff
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
It's just simply \[\Large x = \frac{5}{\sqrt{2}}\] optionally you can rationalize the denominator to get \[\Large x = \frac{5\sqrt{2}}{2}\]
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
5 divide square root 2 ?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
that's the approximate value of the square root of 2
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
ok then what cause i gotta find how long the leg is
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
type this into your calculator 5/sqrt(2)
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
i did thats wat i got
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
you couldn't have gotten 1.414 if you typed in 5/sqrt(2)
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
i got more numbers than that but i just didnt write em all
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
those were beginning numbers
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
i think you just typed in sqrt(2)
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
no.. i did the 5 / sqt 2
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
well it should be 3.5355339059
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
my thoughts exactly, not sure how you got 1.414
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
hmm.. so what do i do now ?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
once you have 3.5355339059, you are done finding the approximate leg length
 one year ago

rebecca1233Best ResponseYou've already chosen the best response.0
okay. i got it.. thanks :)
 one year ago
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