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 one year ago
In a 45° 45° 90° right triangle, the hypotenuse is 4 cm. How long are the legs?
 one year ago
In a 45° 45° 90° right triangle, the hypotenuse is 4 cm. How long are the legs?

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crazycatlady
 one year ago
Best ResponseYou've already chosen the best response.1a 454590 triangle has a hypotenuse of s sqrt 2 and the legs are s

crazycatlady
 one year ago
Best ResponseYou've already chosen the best response.1dw:1368567823761:dw

crazycatlady
 one year ago
Best ResponseYou've already chosen the best response.1So I think that 4/sqrt 2 will give you s

lindoc
 one year ago
Best ResponseYou've already chosen the best response.0so what would be the answer

crazycatlady
 one year ago
Best ResponseYou've already chosen the best response.1Get a calculator and put in 4/sqrt 2. That will be the answer

eSpeX
 one year ago
Best ResponseYou've already chosen the best response.0Another way to get to the same answer is to cross multiply with ratios. Your 45/45/90 triangle has a side ratio of 1/1/sqrt(2). Since you know the hypotenuse you can set it up as what you know over the scaling factor. \[\frac{Unknown~Leg}{1}=\frac{Known~Hyp~Value}{\sqrt{2}}\]Solve for the unknown.
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