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https://prnt.sc/j35e5m

 Apr 10, 2018
 #1
avatar+100588 
+4

The area of the base is composed of six congruent  isosceles triangles with sides of 14cm  and an included angle of 60°

 

So....the area   =

 

6 (1/2) (14)^2*sin (60)  =

 

3 * 196 * √3 / 2  =

 

(3/2) * 196 * √3  =

 

294√3  cm ^2

 

 

cool cool cool

 Apr 10, 2018
 #2
avatar+428 
-1

 

294√3  cm ^2

 Apr 10, 2018

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