rebecca1233
In a 45° 45° 90° right triangle, the hypotenuse is 5 cm. How long are the legs?



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rebecca1233
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@RadEn

cgreenwade2000
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This is a pretty easy one, do you know the Pythagorean Theorem?

BluFoot
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dw:1358277190112:dw

BluFoot
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Since it's isoceles, the two legs have the same length. Now you can use pythagorus:
x^2+x^2 = 5^2, solve for x :)

RadEn
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dw:1358277125983:dw

RadEn
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in other words, x * sqrt(2) = 5
solve for x

BluFoot
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OK but coming up with that is much more difficult than simply using Pythagorus