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mckenzieandjesus
 one year ago
please help me!!
in triangle DEF, df=16 and m<f =45. find the length of a leg. leave your answer in simplest radical form
mckenzieandjesus
 one year ago
please help me!! in triangle DEF, df=16 and m<f =45. find the length of a leg. leave your answer in simplest radical form

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mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435081379555:dw

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2angle f = 45 angle e = 90 Therefore, angle d = 18045 90 angle d = 45 Therefore we are dealing with a 45 45 90 triangle

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0Okay what does that mean?

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0how do i find the answer?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2I'll tell you  give me a minute or 2 to type it

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Triangle DEF is a right triangle with DF as the hypotenuse and DE and EF are the legs According to the Pythagorean Theorem DF^2 = DE^2 + EF^2 It is a 45 45 90 triangle, leg DE = EF so we can say DF^2 = 2* DE^2 16^2 = 2 * DE^2 256 = 2* DE^2 128 = DE^2 DE = 11.313708499 and since DE = EF EF = 11.313708499

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0So what would the answer be? the choices i have are: 8 check mark thing 2, 16 check mark thing 2, 128 and 16

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2I'm guessing the "check mark thing" probably means "square root" Does it look like this √ ?

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435083079125:dw like that

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0dw:1435083104897:dw

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Okay so that means 8 * square root of 2 16 * square root of 2 If you look back to the answer I gave a while ago, one line says 128 = DE^2 Basically that means DE = square root (128) Can you solve that?

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0I am not sure how i would solve it..

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0would the answer just be 128?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Okay, I've practically done all the math here so far. In my previous answer, a few lines before that it says 16^2 = 2 * DE^2 Can you solve that? and NO the answer is NOT just 128.

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0would the answer be dw:1435084166478:dw

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Okay, 16^2 = 2 * DE^2 DE = square root (16^2/2) DE = 16 / (square root (2)) That is the answer

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0ohhh. well thank you so much for trying to help me (: im sorry i get confused

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Gee, I think I did more than a "tad" of help :) You have the answer.

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Well, thanks for the medal :)

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2One more thing the answer is ALSO 8 * square (2)

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0how can it also be that? i can only choose 1

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0so i was right. it that 16 2 simplified?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2That's why I gave you the second choice. 16 DIVIDED by the square root of 2 EQUALS 8 MULTIPLIED by the square root of 2.

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0thats what i thought goo thing i hadnt submited it yet thanku!

mckenzieandjesus
 one year ago
Best ResponseYou've already chosen the best response.0could u help me with another?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.2Well I believe 16 DIVIDED by the square root of 2 was not one of the multiple choice answers so you couldn't have said it. I must get going now. Perhaps someone else could help you. I'd suggest asking a NEW question instead of just adding it on the the end of this one. (It will be noticed by more people.)
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