+0  
 
0
60
2
avatar

A right triangle has a base of 3x-5 and a height of 2x-4. Its perimeter is x2+5x+11. What is the length of the hypotenuse? 

Guest Jan 2, 2018
Sort: 

2+0 Answers

 #1
avatar+81063 
+1

3x -  5          2x  -  4       x^2 + 5x + 11

 

Note that.... if we subtract  the base and height from the perimeter, what remains is the hypotenuse

 

So....adding the base and height we get 7x  - 9

 

And subtracting this from the perimeter, we have

 

[ x^2  + 5x + 11]  -  [  7x  -  9 ]   =

 

x^2 - 2x  +  20   =  the hypotenuse

 

 

cool cool cool

CPhill  Jan 2, 2018
 #2
avatar
0

Thank you :)

Guest Jan 2, 2018

16 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details