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

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crazycatladyBest ResponseYou've already chosen the best response.1
a 454590 triangle has a hypotenuse of s sqrt 2 and the legs are s
 11 months ago

crazycatladyBest ResponseYou've already chosen the best response.1
dw:1368567823761:dw
 11 months ago

crazycatladyBest ResponseYou've already chosen the best response.1
So I think that 4/sqrt 2 will give you s
 11 months ago

lindocBest ResponseYou've already chosen the best response.0
so what would be the answer
 11 months ago

crazycatladyBest ResponseYou've already chosen the best response.1
Get a calculator and put in 4/sqrt 2. That will be the answer
 11 months ago

eSpeXBest ResponseYou've already chosen the best response.0
Another 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.
 11 months ago
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