# Theorems about Similar Polygons?

• Jul 18th 2011, 06:49 PM
zokura
Theorems about Similar Polygons?
Theorems about Similar Polygons?

I so need help with this and couple of others, PLEASE HELP ME!
Explain this to me

Given: rectangle ABCD is similar to rectangle ZBXY. Enter answer as a mixed number.

here's the image link
ImageShack&#174; - Online Photo and Video Hosting

If BC = 10, BX = 6, XY = 4, then CD =
• Jul 18th 2011, 06:57 PM
Also sprach Zarathustra
Re: Theorems about Similar Polygons?
Quote:

Originally Posted by zokura
Theorems about Similar Polygons?

I so need help with this and couple of others, PLEASE HELP ME!
Explain this to me

Given: rectangle ABCD is similar to rectangle ZBXY. Enter answer as a mixed number.

here's the image link
ImageShack&#174; - Online Photo and Video Hosting

If BC = 10, BX = 6, XY = 4, then CD =

$\frac{BC}{BX}=\frac{CD}{XY}$

$\frac{10}{6}=\frac{CD}{4}$

So, $CD=?$
• Jul 18th 2011, 07:26 PM
zokura
Re: Theorems about Similar Polygons?
Thank you so much I want post more questions. my teacher can't explain for nothing.