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
144
5
avatar+2448 

I got 2 side lengths: 4 and 3 and just need the 3rd which im not sure if im doing right. Would it be 5-1^2+1-4^2=sqrt(16+-9)=sqrt(7)

Is that right then I do 4+3+sqrt(7)

 Dec 4, 2018
 #1
avatar+18324 
+1

You are getting there....but what happens when you square a NEGATIVE number   (1-4)^2 = (-3)^2       Hmmmmm....did you forget?

 Dec 4, 2018
 #2
avatar+2448 
0

it becomes positive??

RainbowPanda  Dec 4, 2018
 #3
avatar+2448 
0

P=12

A=6

RainbowPanda  Dec 4, 2018
 #5
avatar+18324 
+1

Exactly!!! Kudos !

ElectricPavlov  Dec 4, 2018
 #4
avatar+203 
+4

Perimeter is 12 and the area is 6.

 Dec 4, 2018

8 Online Users

avatar