+0  
 
0
571
2
avatar

 

What is the length of the side of an equilateral triangle if the height is 7√3

 May 29, 2021
 #1
avatar+14865 
+1

What is the length of the side of an equilateral triangle if the height is 7√3

 

Hello Guest!

 

\(a^2=(\dfrac{a}{2})^2+(7\sqrt{3})^2\ |\ -(\dfrac{a}{2})^2\\ \dfrac{3a^2}{4}=3\cdot49\\ a=\sqrt{\dfrac{3\cdot 49\cdot 4}{3}}\\ \)

\(a=14\)

laugh  !

 May 29, 2021
 #2
avatar+1694 
+3

The length of a side is:    (7√3) / cos30º = 14

 May 29, 2021

4 Online Users

avatar