We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
112
2
avatar+2448 

What are we really trying to do? Prove that RUN is a right triangle.

I already graphed it and it is a right triangle but how do I prove it...

 Nov 28, 2018
 #1
avatar+4827 
+4

show that it's legs satisfy the pythagorean formula

 

\(|RU|^2 = (6-1)^2+(-1-(-1))^2 = 25\\ |RN|^2 = (1-1)^2+(-7-(-1))^2= 64\\ |NU|^2 = (6-1)^2 + (-1-(-7))^2 = 5^2 + 8^2 = 25+64\\ \text{clearly }|RU|^2 + |RN|^2 = |NU|^2 \text{ and thus this must be a right triangle}\)

.
 Nov 28, 2018
 #2
avatar+2448 
+1

Thank you ouo

RainbowPanda  Nov 28, 2018

41 Online Users

avatar
avatar
avatar
avatar
avatar