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avatar+61 

please help!!

 May 21, 2021
 #1
avatar+564 
-1

all the lines meet up at the center, so there are 11 triangles, that have equal area. each triangle has an area of 15, so 11x15=$\boxed{165}$

 May 21, 2021
 #2
avatar+121054 
+2

We  are  drawing   segments   ("diagonals")  from  one vertex  to  each  of ( 11 - 3)  =   8  other  vertexes  ( we  are already connected to the  two adjacent  vertexes)

 

The  number  of  triangles  formed  =  (11 - 2)  = 9

 

The  area  =   9 * 15    =    135

 

 

cool cool cool

 May 21, 2021

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