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Mathematics 17 Online
OpenStudy (anonymous):

Find x,y,z Write answers in simplest radical form

OpenStudy (anonymous):

|dw:1431810078135:dw|

OpenStudy (welshfella):

Hint: all 3 triangles are similar in this diagram

OpenStudy (anonymous):

I think I got the y by doing a^2 + b^2 = c^2 18^2 + 27^2 = c^2 324 + 729=c^2 1053 = c^2 c=32.45 so the y would be the 32.45 but can't figure out where to start on the others. x & z

OpenStudy (jhannybean):

\[\frac{x}{18}=\frac{18}{27}\]

OpenStudy (jhannybean):

Provided that |dw:1431810423465:dw| yes?

OpenStudy (anonymous):

Yes but I forgot that the top right angle is a 90 angle on both sides see pic

OpenStudy (anonymous):

|dw:1431810516578:dw|

OpenStudy (anonymous):

so x = 12 got it - thanks. So how do I get the z side?

OpenStudy (jhannybean):

Ah, yes, \(\color{blue}{\text{Originally Posted by}}\) @Jhannybean \[\frac{x}{18}=\frac{18}{27}\] \(\color{blue}{\text{End of Quote}}\) then only this ratio will work.

OpenStudy (jhannybean):

Well, same way you found the y

OpenStudy (jhannybean):

\[z=\sqrt{12^2+18^2}\]

OpenStudy (anonymous):

Got it thank you so much

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