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We have a triangle ABC such that  AB = AC = 8 and BC = 10. What is the length of the median ?

 Sep 23, 2019
 #1
avatar+961 
+1

sqrt39, I think... Lemme check.

 Sep 23, 2019
 #2
avatar+104869 
+1

If the median is drawn to BC  from A....the length  is

 

sqrt (8^2 - 5^2)  =  sqrt (64 - 25)  =  sqrt (39)

 

If the median is drawn from B to AC......then its length is :

 

 sqrt  ( 5^2  + 39/9) +  sqrt (5^2 + 39/9)/2   =

 

(3/2)sqrt ( 264)/3  =

 

sqrt (264)/2  =

 

2sqt (66) / 2  =

 

sqrt (66)

 

 

cool cool cool

 Sep 25, 2019
 #3
avatar+18 
0

nvm its sqrt39

charluu  Sep 26, 2019
edited by charluu  Sep 26, 2019

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