Online Course Discussion Forum

What is Kurrah's Theorem?

 
 
Picture of CLAIRE SUN
What is Kurrah's Theorem?
by CLAIRE SUN - Sunday, 21 October 2018, 6:27 AM
 
Title is self explanatory; I can't seem to find much about it on Google. 
 
Picture of Derek Dong
Re: What is Kurrah's Theorem?
by Derek Dong - Sunday, 21 October 2018, 3:49 PM
 

I'd assume this:

https://pdfs.semanticscholar.org/d75f/b99ea6b086028313685450235c7774b0b092.pdf

Ignore the abstract, and read the last, italicized sentence of the first paragraph.

Picture of CLAIRE SUN
Re: What is Kurrah's Theorem?
by CLAIRE SUN - Sunday, 21 October 2018, 5:51 PM
 

Thank you! 

Picture of Alan Cheng
Re: What is Kurrah's Theorem?
by Alan Cheng - Tuesday, 26 November 2019, 6:40 PM
 

It's a theorem in geometry.

Draw triangle ABC. Construct D, E on AC with <ABC = <ADB = <BEC. Kurrah's Theorem states that

AB^2 + BC^2 = AC(AD+CE).