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avatar+164 

How do I work out angle X?

 

Thanks

 Dec 7, 2017
 #1
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triangles are always 180 degrees, seems like you have the outer corner, which is 116

180-116 is 64

Also it seems like you have a symmetrical triangle, which means x is (180-64)/2

 Dec 7, 2017
 #2
avatar+100587 
+2

Both  angles across the equal sides are themselves equal  = x

 

And using the exterior angle theorem,,,we have that

 

116  =  x  + x

 

116   = 2x       divide both sides by 2

 

58° =  x

 

 

cool cool cool

 Dec 7, 2017

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