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
200
1
avatar

 

Can someone help me? I'm not sure how to approach this and I feel like i've followed the formulas correctly. Thank you!

 Mar 6, 2018
 #1
avatar+100516 
+1

When we have a right triangle like this...we have the following relationship

 

12/ height =  height/ 9       cross-multiply

 

108  =  height^2       take the positive root

 

√108  = height 

 

Using the Pythagorean Theorem.....

 

y  = √  [ (√108)^2  + 12^2 ]

 

y  = √  [ 108 + 144]

 

y  =  √252  =  √ { 7 * 36 ]   =  6 √ 7

 

 

 

cool cool cool cool

 Mar 6, 2018

10 Online Users