SOLUTION: Referring to the figure, find the missing length x. Round the answer to the nearest hundredths. (i dont know how to put the figure but im going to try to make it,its a right tria

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Referring to the figure, find the missing length x. Round the answer to the nearest hundredths. (i dont know how to put the figure but im going to try to make it,its a right tria      Log On


   

Question 601418: Referring to the figure, find the missing length x. Round the answer to the nearest hundredths.
(i dont know how to put the figure but im going to try to make it,its a right triangle and has a 45 degree angle, i hope you understand it)

| \
| \
| \
| \x
| \
|_ \
|_|______\
8
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
cos(45) = 8/x

sqrt(2)/2 = 8/x

x*sqrt(2) = 2*8

x*sqrt(2) = 16

x = 16/sqrt(2)

x = 16*sqrt(2)/2

x = 8*sqrt(2)

x = 11.31