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January 26, 2015

January 26, 2015

Posted by **BARBIE LEE** on Wednesday, November 20, 2013 at 7:59am.

imageshack(.)(us)/photo/my-images/17/6n4x.jpg/

please PLEASE IM BEGGING YOU MY TEACHER WILL BE GIVING ME 79 IF I DIDNT GET THIS .. OR ELSE LOWER THAN THAT. PLEASE

- TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS -
**BARBIE LEE**, Wednesday, November 20, 2013 at 8:06amjust delete the parethesis please

- TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS -
**Reiny**, Wednesday, November 20, 2013 at 10:52amThe key to this question is to realize that all the right -angled triangles are similar, and have the

ratio of 3:4:5 in the length of their sides.

Mark the two angles in triangle BCD with o and x

( you should be able to see that since XD | BC , so you can mark XDC as o and DCX as x

continue through the other triangles...)

Triangle XDC is similar to triangle DCB

XD:XC:DC = DC:DB:CB = 4:3:5

4p:3p:4

4p/4 = 4/5

4p = 16/5 ----> XD = 16/5

3p/4 = 3/5

3p=12/5 ----> XC = 12/5

and of course ---> CD = 4

now you have all the sides of triangle XDC

Did you notice that

3:4:5 = (5/4)(12/5 : 16/5 : 4) ??

continue in this fashion until you have all sides needed.

- TRIANGLE SIMILARITIES RATIOS AND PROPORTIONS -
**Anonymous**, Wednesday, November 20, 2013 at 4:26pmyes sir ive got that already. i dont know what to do next. please help

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